diff --git a/phpBB/adm/style/admin.css b/phpBB/adm/style/admin.css
index 34ee4184bf..b53587a5cf 100644
--- a/phpBB/adm/style/admin.css
+++ b/phpBB/adm/style/admin.css
@@ -2762,7 +2762,7 @@ fieldset.permissions .permissions-switch {
 }
 
 .outdated-ext {
-	color: #BC2A4D;
+	color: #bc2a4d;
 }
 
 .phpinfo {