diff --git a/packages/cli/commands/preview.js b/packages/cli/commands/preview.js
index ca35a1e4c..57c06d376 100644
--- a/packages/cli/commands/preview.js
+++ b/packages/cli/commands/preview.js
@@ -36,7 +36,7 @@ exports.command = 'preview <src> <dest>';
 exports.describe = i18n(`${i18nKey}.describe`);
 
 exports.handler = async options => {
-  const { src, dest, notify, initialUpload, noSsl } = options;
+  const { src, dest, notify, initialUpload, noSsl, port } = options;
 
   const accountId = getAccountId(options);
   const absoluteSrc = path.resolve(getCwd(), src);
@@ -52,6 +52,7 @@ exports.handler = async options => {
     filePaths,
     initialUpload,
     noSsl,
+    port,
   });
 };
 
@@ -79,5 +80,9 @@ exports.builder = yargs => {
     describe: i18n(`${i18nKey}.options.noSsl.describe`),
     type: 'boolean',
   });
+  yargs.option('port', {
+    describe: i18n(`${i18nKey}.options.port.describe`),
+    type: 'number',
+  });
   return yargs;
 };
diff --git a/packages/cli/lang/en.lyaml b/packages/cli/lang/en.lyaml
index 62fc9a595..a18a3cdef 100644
--- a/packages/cli/lang/en.lyaml
+++ b/packages/cli/lang/en.lyaml
@@ -853,6 +853,8 @@ en:
             describe: "Upload directory before watching for updates"
           noSsl:
             describe: "Disable HTTPS"
+          port:
+            describe: "The port on which to start the local server"
       convertFields:
         describe: "Converts a specific JavaScript fields file of a module or theme to JSON"
         positionals: