diff --git a/app/src/protyle/toolbar/Font.ts b/app/src/protyle/toolbar/Font.ts
index a11e43c28..78aca5a53 100644
--- a/app/src/protyle/toolbar/Font.ts
+++ b/app/src/protyle/toolbar/Font.ts
@@ -291,10 +291,15 @@ export const setFontStyle = (textElement: HTMLElement, textOption: ITextOption)
     const setBlockRef = (blockRefOption: string) => {
         const blockRefData = blockRefOption.split(Constants.ZWSP);
         // 标签等元素中包含 ZWSP，需移除后拼接 https://github.com/siyuan-note/siyuan/issues/6466
-        textElement.setAttribute("data-id", blockRefData.splice(0, 1)[0]);
+        const id = blockRefData.splice(0, 1)[0];
+        textElement.setAttribute("data-id", id);
         textElement.setAttribute("data-subtype", blockRefData.splice(0, 1)[0]);
         textElement.removeAttribute("data-href");
-        textElement.innerText = blockRefData.join("");
+        let text = blockRefData.join("");
+        if (text.replace(/\s/g, "") === "") {
+            text = id;
+        }
+        textElement.innerText = text;
     };
     const setLink = (textOption: string) => {
         const options = textOption.split(Constants.ZWSP);