diff --git a/CHANGELOG.md b/CHANGELOG.md
index 46eb4c1..94aa0b3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# v3.1.1
+
+* fix: quoting on error message in test
+
 # v3.1.0
 
 * upd: do not force tag values to lowercase
diff --git a/circonus-gometrics_test.go b/circonus-gometrics_test.go
index 375564f..19ee12a 100644
--- a/circonus-gometrics_test.go
+++ b/circonus-gometrics_test.go
@@ -134,7 +134,7 @@ func TestNew(t *testing.T) {
 		cfg := &Config{
 			Interval: "thirty seconds",
 		}
-		expectedError := errors.New("parsing flush interval: time: invalid duration thirty seconds")
+		expectedError := errors.New(`parsing flush interval: time: invalid duration "thirty seconds"`)
 		_, err := New(cfg)
 		if err == nil {
 			t.Fatal("expected error")