diff --git a/t_common_test.go b/t_common_test.go
index c57572c..3cf9a42 100644
--- a/t_common_test.go
+++ b/t_common_test.go
@@ -107,13 +107,13 @@ func doTest(t *testing.T, ctx kern.ExprContext, section string, input *inputType
 	}
 
 	if !eq /*gotResult != input.wantResult*/ {
-		t.Errorf("%d: `%s` -> result = %v [%s], want = %v [%s]", count, input.source, gotResult, kern.TypeName(gotResult), input.wantResult, kern.TypeName(input.wantResult))
+		t.Errorf(">>>%s/%d: `%s` -> result = %v [%s], want = %v [%s]", section, count, input.source, gotResult, kern.TypeName(gotResult), input.wantResult, kern.TypeName(input.wantResult))
 		good = false
 	}
 
 	if gotErr != wantErr {
 		if wantErr == nil || gotErr == nil || (gotErr.Error() != wantErr.Error()) {
-			t.Errorf("%d: %s -> got-err = <%v>, expected-err = <%v>", count, input.source, gotErr, wantErr)
+			t.Errorf(">>>%s/%d: %s -> got-err = <%v>, expected-err = <%v>", section, count, input.source, gotErr, wantErr)
 			good = false
 		}
 	}