diff --git a/test/nul1.go b/test/nul1.go
index d98fd714a9..9d6974f818 100644
--- a/test/nul1.go
+++ b/test/nul1.go
@@ -48,7 +48,7 @@ var yy = ` + "`in raw string \xff foo`" + `  // ERROR "UTF-8"
 
 // in comment ` + "\xe2\x80\x01" + `  // ERROR "UTF-8"
 
-/* in other comment ` + "\xe0\x00\x00" + ` */ // ERROR "UTF-8"
+/* in other comment ` + "\xe0\x00\x00" + ` */ // ERROR "UTF-8|NUL"
 
 /* in variable name */
 var z` + "\xc1\x81" + ` int // ERROR "UTF-8"