diff --git a/themes/compact.css b/themes/compact.css
index 51c3f7f92..3ad2956eb 100644
--- a/themes/compact.css
+++ b/themes/compact.css
@@ -1,5 +1,3 @@
-/* supports-version:17.1 */
-
 @import "default.php";
 
 body,