diff --git a/package.json b/package.json
index ae0f216f..38ea8068 100644
--- a/package.json
+++ b/package.json
@@ -175,7 +175,7 @@
         },
         {
           "command": "memo.openReferenceInNextColumn",
-          "when": "editorLangId == markdown "
+          "when": "editorLangId == markdown"
         }
       ]
     },