diff --git a/src/main/webapp/common/css/hippo/hippo.css b/src/main/webapp/common/css/hippo/hippo.css
index 834a473ee..7ac363187 100644
--- a/src/main/webapp/common/css/hippo/hippo.css
+++ b/src/main/webapp/common/css/hippo/hippo.css
@@ -64,6 +64,5 @@ rect.frame {
 
 path.link {
   fill: none;
-  stroke: #ccc;
   stroke-width: 1.5px;
 }
\ No newline at end of file