diff --git a/website/agenda/css/calcms.css b/website/agenda/css/calcms.css
index 6b78dc6..141e0cf 100644
--- a/website/agenda/css/calcms.css
+++ b/website/agenda/css/calcms.css
@@ -586,7 +586,7 @@ a {
 }
 
 #calcms_search input[type="button"] {
-    background: none;
+    background: #1987d1;
     width: 50%;
 }