diff --git a/docs.it4i/src/css.css b/docs.it4i/src/css.css
index e34c6415d6cf56b6dd902347488e88708c0d6104..8538fae7e195c6711e4ddd582ba8c216b6fdb05b 100644
--- a/docs.it4i/src/css.css
+++ b/docs.it4i/src/css.css
@@ -2,7 +2,7 @@ a:not([href*="//"]) {
     /* CSS for internal links */
 }
 
-a[href*="//"]:not([href*="*.it4i.cz"]) {
+a[href*="//"]:not([href*="gitlab.it4i.cz"]):after {
     /*CSS for external links */
     background: transparent url("/img/external.png") no-repeat right 0px top 1px;
     background-size: 12px;