diff --git a/tests/testcommon/test.css b/tests/testcommon/test.css
index 49f5b65dd..eeeb8de97 100644
--- a/tests/testcommon/test.css
+++ b/tests/testcommon/test.css
@@ -2,6 +2,7 @@
 
 stage {
     font: 16pt serif;
+    color: black;
 }
 
 .red {