diff --git a/simple-mind-map/src/constants/constant.js b/simple-mind-map/src/constants/constant.js
index 6f4bf79d..179f6204 100644
--- a/simple-mind-map/src/constants/constant.js
+++ b/simple-mind-map/src/constants/constant.js
@@ -78,7 +78,8 @@ export const CONSTANTS = {
   },
   EDIT_NODE_CLASS: {
     SMM_NODE_EDIT_WRAP: 'smm-node-edit-wrap',
-    RICH_TEXT_EDIT_WRAP: 'ql-editor'
+    RICH_TEXT_EDIT_WRAP: 'ql-editor',
+    ASSOCIATIVE_LINE_TEXT_EDIT_WRAP: 'associative-line-text-edit-warp'
   }
 }
 
diff --git a/simple-mind-map/src/core/command/KeyCommand.js b/simple-mind-map/src/core/command/KeyCommand.js
index f65c9fa3..2e8d7049 100644
--- a/simple-mind-map/src/core/command/KeyCommand.js
+++ b/simple-mind-map/src/core/command/KeyCommand.js
@@ -80,7 +80,8 @@ export default class KeyCommand {
     return (
       target === document.body ||
       target.classList.contains(CONSTANTS.EDIT_NODE_CLASS.SMM_NODE_EDIT_WRAP) ||
-      target.classList.contains(CONSTANTS.EDIT_NODE_CLASS.RICH_TEXT_EDIT_WRAP)
+      target.classList.contains(CONSTANTS.EDIT_NODE_CLASS.RICH_TEXT_EDIT_WRAP) || 
+      target.classList.contains(CONSTANTS.EDIT_NODE_CLASS.ASSOCIATIVE_LINE_TEXT_EDIT_WRAP)
     )
   }