diff --git a/test/limelight.vader b/test/limelight.vader
index b3b7519..4218041 100644
--- a/test/limelight.vader
+++ b/test/limelight.vader
@@ -98,6 +98,7 @@ Execute (Unsupported. but g:limelight_conceal_???fg defined):
     Limelight!
     AssertOff
   else
+    set notermguicolors
     colo default
     let &t_Co = 256