diff --git a/app/src/protyle/wysiwyg/keydown.ts b/app/src/protyle/wysiwyg/keydown.ts
index 0da83811a..b93ae9c02 100644
--- a/app/src/protyle/wysiwyg/keydown.ts
+++ b/app/src/protyle/wysiwyg/keydown.ts
@@ -1884,7 +1884,7 @@ export const keydown = (protyle: IProtyle, editorElement: HTMLElement) => {
                 return;
             }
             if (!event.shiftKey) {
-                document.execCommand("insertText", false, window.siyuan.config.editor.codeTabSpaces === 0 ? "\t" : "".padStart(window.siyuan.config.editor.codeTabSpaces, " "));
+                document.execCommand("insertHTML", false, window.siyuan.config.editor.codeTabSpaces === 0 ? "\t" : "".padStart(window.siyuan.config.editor.codeTabSpaces, " "));
                 return true;
             }
         }