diff --git a/test/fixedbugs/bug340.go b/test/fixedbugs/bug340.go
index 118bbacc22..8c543c98d9 100644
--- a/test/fixedbugs/bug340.go
+++ b/test/fixedbugs/bug340.go
@@ -12,6 +12,6 @@ func main() {
 	var x interface{}
 	switch t := x.(type) {
 	case 0:		// ERROR "type"
-		t.x = 1 // ERROR "type interface \{\}|reference to undefined field or method"
+		t.x = 1 // ERROR "type interface \{\}|reference to undefined field or method|interface with no methods"
 	}
 }