diff --git a/app/src/editor/rename.ts b/app/src/editor/rename.ts
index 4a96bf52e..cd91f8344 100644
--- a/app/src/editor/rename.ts
+++ b/app/src/editor/rename.ts
@@ -34,7 +34,11 @@ export const validateName = (name: string, targetElement?: HTMLElement) => {
 };
 
 export const replaceFileName = (name: string) => {
-    return name.replace(/\r\n|\r|\n|\u2028|\u2029|\t|/g, "").replace(/\//g, "／").substring(0, Constants.SIZE_TITLE);
+    if (name.indexOf("/") > -1) {
+        showMessage(window.siyuan.languages.fileNameRule);
+        name = name.replace(/\//g, "／");
+    }
+    return name.replace(/\r\n|\r|\n|\u2028|\u2029|\t|/g, "").substring(0, Constants.SIZE_TITLE);
 };
 
 export const replaceLocalPath = (name: string) => {