diff --git a/src/bonsai/bonsai/bim/data/assets/markers.svg b/src/bonsai/bonsai/bim/data/assets/markers.svg
index 96a171b3b0..265f669594 100644
--- a/src/bonsai/bonsai/bim/data/assets/markers.svg
+++ b/src/bonsai/bonsai/bim/data/assets/markers.svg
@@ -97,11 +97,7 @@
         </g>
     </marker>
     <filter x="0" y="0" width="1" height="1" id="fill-background">
-      <feFlood flood-color="white" result="bg" />
-      <feMerge>
-        <feMergeNode in="bg"/>
-        <feMergeNode in="SourceGraphic"/>
-      </feMerge>
+      <feFlood flood-color="white" />
     </filter>
 
 </svg>