diff --git a/README.md b/README.md
index 65ebd9f..fb0d783 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,8 @@ To configure the trendline plugin you simply add a new config options to your da
 		colorMax: "green",
 		lineStyle: "dotted|solid",
 		width: 2,
+		xAxisKey: "time" (optional),
+		yAxisKey: "usage" (optional),
 		projection: true|false (optional)
 	}
 }
diff --git a/dist/chartjs-plugin-trendline.min.js b/dist/chartjs-plugin-trendline.min.js
index a2a3c7f..f3cfda2 100644
--- a/dist/chartjs-plugin-trendline.min.js
+++ b/dist/chartjs-plugin-trendline.min.js
@@ -1,2 +1,2 @@
 /*! For license information please see chartjs-plugin-trendline.min.js.LICENSE.txt */
-(()=>{var t={460:(t,e)=>{const s={id:"chartjs-plugin-trendline",afterDatasetsDraw:t=>{let e,s;for(let i in t.scales)if("x"==i[0]?s=t.scales[i]:e=t.scales[i],s&&e)break;const i=t.ctx;t.data.datasets.forEach(((e,a)=>{const r=e.alwaysShowTrendline||t.isDatasetVisible(a);if(e.trendlineLinear&&r&&e.data.length>1){const r=t.getDatasetMeta(a);addFitter(r,i,e,s,t.scales[r.yAxisID])}})),i.setLineDash([])}};addFitter=(t,e,s,a,r)=>{let o=s.borderColor||"rgba(169,169,169, .6)",l=s.trendlineLinear.colorMin||o,n=s.trendlineLinear.colorMax||o,h=s.trendlineLinear.width||s.borderWidth,d=s.trendlineLinear.lineStyle||"solid",u=s.trendlineLinear.fillColor;h=void 0!==h?h:3;let m=new i,x=s.data.findIndex((t=>null!=t)),c=s.data.length-1,X=t.data[x].x,f=t.data[c].x,p="object"==typeof s.data[x];s.data.forEach(((t,e)=>{if(null!=t)if(["time","timeseries"].includes(a.options.type)){let s=null!=t.x?t.x:t.t;void 0!==s?m.add(new Date(s).getTime(),t.y):m.add(e,t)}else p?isNaN(t.x)||isNaN(t.y)?isNaN(t.x)?isNaN(t.y)||m.add(e,t.y):m.add(e,t.x):m.add(t.x,t.y):m.add(e,t)}));let g,w,y=a.getPixelForValue(m.minx),Y=r.getPixelForValue(m.f(m.minx));if(s.trendlineLinear.projection&&m.scale()<0){let t=m.fo();t<m.minx&&(t=m.maxx),g=a.getPixelForValue(t),w=r.getPixelForValue(m.f(t))}else g=a.getPixelForValue(m.maxx),w=r.getPixelForValue(m.f(m.maxx));p||(y=X,g=f);let F=t.controller.chart.chartArea.bottom,L=t.controller.chart.width;if(Y>F){let t=Y-F,e=Y-w;Y=F,y+=L*(t/e)}else if(w>F){let t=w-F,e=w-Y;w=F,g=L-(g-(L-L*(t/e)))}e.lineWidth=h,"dotted"===d?e.setLineDash([2,3]):e.setLineDash([]),e.beginPath(),e.moveTo(y,Y),e.lineTo(g,w);let P=e.createLinearGradient(y,Y,g,w);w<Y?(P.addColorStop(0,n),P.addColorStop(1,l)):(P.addColorStop(0,l),P.addColorStop(1,n)),e.strokeStyle=P,e.stroke(),e.closePath(),u&&(e.fillStyle=u,e.beginPath(),e.moveTo(y,Y),e.lineTo(g,w),e.lineTo(g,F),e.lineTo(y,F),e.closePath(),e.fill())};class i{constructor(){this.count=0,this.sumX=0,this.sumX2=0,this.sumXY=0,this.sumY=0,this.minx=1e100,this.maxx=-1e100,this.maxy=-1e100}add(t,e){t=parseFloat(t),e=parseFloat(e),this.count++,this.sumX+=t,this.sumX2+=t*t,this.sumXY+=t*e,this.sumY+=e,t<this.minx&&(this.minx=t),t>this.maxx&&(this.maxx=t),e>this.maxy&&(this.maxy=e)}f(t){t=parseFloat(t);let e=this.count*this.sumX2-this.sumX*this.sumX;return(this.sumX2*this.sumY-this.sumX*this.sumXY)/e+t*((this.count*this.sumXY-this.sumX*this.sumY)/e)}fo(){let t=this.count*this.sumX2-this.sumX*this.sumX;return-(this.sumX2*this.sumY-this.sumX*this.sumXY)/t/((this.count*this.sumXY-this.sumX*this.sumY)/t)}scale(){let t=this.count*this.sumX2-this.sumX*this.sumX;return(this.count*this.sumXY-this.sumX*this.sumY)/t}}"undefined"!=typeof window&&window.Chart&&(window.Chart.hasOwnProperty("register")?window.Chart.register(s):window.Chart.plugins.register(s));try{t.exports=s}catch(t){}}},e={};!function s(i){var a=e[i];if(void 0!==a)return a.exports;var r=e[i]={exports:{}};return t[i](r,r.exports,s),r.exports}(460)})();
\ No newline at end of file
+(()=>{var t={460:(t,e)=>{const s={id:"chartjs-plugin-trendline",afterDatasetsDraw:t=>{let e,s;for(let i in t.scales)if("x"==i[0]?s=t.scales[i]:e=t.scales[i],s&&e)break;const a=t.ctx;t.data.datasets.forEach(((e,r)=>{const n=e.alwaysShowTrendline||t.isDatasetVisible(r);if(e.trendlineLinear&&n&&e.data.length>1){const n=t.getDatasetMeta(r);i(n,a,e,s,t.scales[n.yAxisID])}})),a.setLineDash([])}},i=(t,e,s,i,r)=>{let n=s.borderColor||"rgba(169,169,169, .6)",o=s.trendlineLinear.colorMin||n,l=s.trendlineLinear.colorMax||n,h=s.trendlineLinear.width||s.borderWidth,d=s.trendlineLinear.lineStyle||"solid",u=s.trendlineLinear.fillColor;const m=s.trendlineLinear.xAxisKey||t.controller.chart.options.parsing.xAxisKey,x=s.trendlineLinear.yAxisKey||t.controller.chart.options.parsing.yAxisKey;h=void 0!==h?h:3;let c=new a,X=s.data.findIndex((t=>null!=t)),f=s.data.length-1,p=t.data[X][m],y=t.data[f][m],g="object"==typeof s.data[X];s.data.forEach(((t,e)=>{if(null!=t)if(["time","timeseries"].includes(i.options.type)){let s=null!=t[m]?t[m]:t.t;void 0!==s?c.add(new Date(s).getTime(),t[x]):c.add(e,t)}else g?isNaN(t.x)||isNaN(t.y)?isNaN(t.x)?isNaN(t.y)||c.add(e,t.y):c.add(e,t.x):c.add(t.x,t.y):c.add(e,t)}));let w,Y,L=i.getPixelForValue(c.minx),P=r.getPixelForValue(c.f(c.minx));if(s.trendlineLinear.projection&&c.scale()<0){let t=c.fo();t<c.minx&&(t=c.maxx),w=i.getPixelForValue(t),Y=r.getPixelForValue(c.f(t))}else w=i.getPixelForValue(c.maxx),Y=r.getPixelForValue(c.f(c.maxx));g||(L=p,w=y);let C=t.controller.chart.chartArea.bottom,b=t.controller.chart.width;if(P>C){let t=P-C,e=P-Y;P=C,L+=b*(t/e)}else if(Y>C){let t=Y-C,e=Y-P;Y=C,w=b-(w-(b-b*(t/e)))}e.lineWidth=h,"dotted"===d?e.setLineDash([2,3]):e.setLineDash([]),e.beginPath(),e.moveTo(L,P),e.lineTo(w,Y);let D=e.createLinearGradient(L,P,w,Y);Y<P?(D.addColorStop(0,l),D.addColorStop(1,o)):(D.addColorStop(0,o),D.addColorStop(1,l)),e.strokeStyle=D,e.stroke(),e.closePath(),u&&(e.fillStyle=u,e.beginPath(),e.moveTo(L,P),e.lineTo(w,Y),e.lineTo(w,C),e.lineTo(L,C),e.closePath(),e.fill())};class a{constructor(){this.count=0,this.sumX=0,this.sumX2=0,this.sumXY=0,this.sumY=0,this.minx=1e100,this.maxx=-1e100,this.maxy=-1e100}add(t,e){t=parseFloat(t),e=parseFloat(e),this.count++,this.sumX+=t,this.sumX2+=t*t,this.sumXY+=t*e,this.sumY+=e,t<this.minx&&(this.minx=t),t>this.maxx&&(this.maxx=t),e>this.maxy&&(this.maxy=e)}f(t){t=parseFloat(t);let e=this.count*this.sumX2-this.sumX*this.sumX;return(this.sumX2*this.sumY-this.sumX*this.sumXY)/e+t*((this.count*this.sumXY-this.sumX*this.sumY)/e)}fo(){let t=this.count*this.sumX2-this.sumX*this.sumX;return-(this.sumX2*this.sumY-this.sumX*this.sumXY)/t/((this.count*this.sumXY-this.sumX*this.sumY)/t)}scale(){let t=this.count*this.sumX2-this.sumX*this.sumX;return(this.count*this.sumXY-this.sumX*this.sumY)/t}}"undefined"!=typeof window&&window.Chart&&(window.Chart.hasOwnProperty("register")?window.Chart.register(s):window.Chart.plugins.register(s));try{t.exports=s}catch(t){}}},e={};!function s(i){var a=e[i];if(void 0!==a)return a.exports;var r=e[i]={exports:{}};return t[i](r,r.exports,s),r.exports}(460)})();
\ No newline at end of file
diff --git a/package.json b/package.json
index 75016b9..dfb4d88 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "chartjs-plugin-trendline",
-  "version": "2.0.5",
+  "version": "2.1.0",
   "description": "Trendline for Chart.js",
   "main": "src/chartjs-plugin-trendline.js",
   "scripts": {
diff --git a/src/chartjs-plugin-trendline.js b/src/chartjs-plugin-trendline.js
index b678aed..149fc7e 100644
--- a/src/chartjs-plugin-trendline.js
+++ b/src/chartjs-plugin-trendline.js
@@ -45,7 +45,7 @@ const pluginTrendlineLinear = {
     },
 };
 
-addFitter = (datasetMeta, ctx, dataset, xScale, yScale) => {
+const addFitter = (datasetMeta, ctx, dataset, xScale, yScale) => {
     let defaultColor = dataset.borderColor || 'rgba(169,169,169, .6)';
     let colorMin = dataset.trendlineLinear.colorMin || defaultColor;
     let colorMax = dataset.trendlineLinear.colorMax || defaultColor;
@@ -53,6 +53,11 @@ addFitter = (datasetMeta, ctx, dataset, xScale, yScale) => {
     let lineStyle = dataset.trendlineLinear.lineStyle || 'solid';
     let fillColor = dataset.trendlineLinear.fillColor;
 
+    const parsing = typeof datasetMeta.controller.chart.options.parsing === "object" ?
+        datasetMeta.controller.chart.options.parsing : undefined;
+    const xAxisKey = dataset.trendlineLinear.xAxisKey || parsing ? parsing.xAxisKey : "x";
+    const yAxisKey = dataset.trendlineLinear.yAxisKey || parsing ? parsing.yAxisKey : "y";
+
     lineWidth = lineWidth !== undefined ? lineWidth : 3;
 
     let fitter = new LineFitter();
@@ -60,17 +65,17 @@ addFitter = (datasetMeta, ctx, dataset, xScale, yScale) => {
         return d !== undefined && d !== null;
     });
     let lastIndex = dataset.data.length - 1;
-    let startPos = datasetMeta.data[firstIndex].x;
-    let endPos = datasetMeta.data[lastIndex].x;
+    let startPos = datasetMeta.data[firstIndex][xAxisKey];
+    let endPos = datasetMeta.data[lastIndex][xAxisKey];
     let xy = typeof dataset.data[firstIndex] === 'object';
 
     dataset.data.forEach((data, index) => {
         if (data == null) return;
 
         if (['time', 'timeseries'].includes(xScale.options.type)) {
-            let x = data.x != null ? data.x : data.t;
+            let x = data[xAxisKey] != null ? data[xAxisKey] : data.t;
             if (x !== undefined) {
-                fitter.add(new Date(x).getTime(), data.y);
+                fitter.add(new Date(x).getTime(), data[yAxisKey]);
             } else {
                 fitter.add(index, data);
             }