diff --git a/src/main/frontend/components/block.cljs b/src/main/frontend/components/block.cljs
index e49b60474..bf748e635 100644
--- a/src/main/frontend/components/block.cljs
+++ b/src/main/frontend/components/block.cljs
@@ -120,7 +120,7 @@
     (let [{:keys [link protocol]} m]
       (if (= protocol "file")
         link
-        (str protocol ":" link)))))
+        (str protocol "://" link)))))
 
 (defn- get-file-absolute-path
   [config path]