diff --git a/testutil/metric.go b/testutil/metric.go
index 75df98df0..cb59eaa9e 100644
--- a/testutil/metric.go
+++ b/testutil/metric.go
@@ -172,7 +172,7 @@ func IgnoreFields(names ...string) cmp.Option {
 	)
 }
 
-// return disables comparison of the tags with the given names.
+// IgnoreTags disables comparison of the tags with the given names.
 // The tag-names are case-sensitive!
 func IgnoreTags(names ...string) cmp.Option {
 	return cmpopts.IgnoreSliceElements(