diff --git a/ghost/admin/assets/lib/editor/uploadManager.js b/ghost/admin/assets/lib/editor/uploadManager.js
index b83b37fb64..7bbee4e14c 100644
--- a/ghost/admin/assets/lib/editor/uploadManager.js
+++ b/ghost/admin/assets/lib/editor/uploadManager.js
@@ -61,7 +61,7 @@
             if (isImage) {
                 hasMarker = line.text.match(markerRegex);
 
-                if (hasMarker && mode === 'paste') {
+                if (hasMarker && (mode === 'paste' || mode === 'undo')) {
                     // this could be a duplicate, and won't be a real marker
                     markerMgr.stripMarkerFromLine(line);
                 }