diff --git a/config/keycloak/themes/opencloud/login/resources/css/theme.css b/config/keycloak/themes/opencloud/login/resources/css/theme.css
index 450f406..122870c 100644
--- a/config/keycloak/themes/opencloud/login/resources/css/theme.css
+++ b/config/keycloak/themes/opencloud/login/resources/css/theme.css
@@ -22,7 +22,7 @@
 
 body {
     font-family: "OpenCloud", "Open Sans", Helvetica, Arial, sans-serif;
-    background: url(../img/background.png) no-repeat center !important;
+    background: url(../img/background.png) no-repeat center fixed !important;
     background-size: cover !important;
 }