diff --git a/tools/compliance/readgraph_test.go b/tools/compliance/readgraph_test.go
index db52fb1..bcf9f39 100644
--- a/tools/compliance/readgraph_test.go
+++ b/tools/compliance/readgraph_test.go
@@ -94,7 +94,7 @@
 				}
 				return
 			}
-			if 0 < len(tt.expectedError) {
+			if len(tt.expectedError) > 0 {
 				t.Errorf("unexpected success: got no error, want %q err", tt.expectedError)
 				return
 			}