diff --git a/msg/json/en.json b/msg/json/en.json
index 9d1999912..e5bba6b14 100644
--- a/msg/json/en.json
+++ b/msg/json/en.json
@@ -397,6 +397,7 @@
 	"WORKSPACE_ARIA_LABEL": "Blockly Workspace",
 	"COLLAPSED_WARNINGS_WARNING": "Collapsed blocks contain warnings.",
 	"DIALOG_OK": "OK",
+  "DIALOG_CANCEL": "Cancel",
 	"EDIT_BLOCK_CONTENTS": "Edit Block contents",
 	"MOVE_BLOCK": "Move Block",
 	"WINDOWS": "Windows",