diff --git a/app/src/protyle/export/util.ts b/app/src/protyle/export/util.ts
index 31968b876..50751e90e 100644
--- a/app/src/protyle/export/util.ts
+++ b/app/src/protyle/export/util.ts
@@ -8,7 +8,7 @@ import {Dialog} from "../../dialog";
 import {addScript} from "../util/addScript";
 import {isMobile} from "../../util/functions";
 import {Constants} from "../../constants";
-import {highlightRender} from "../render/highlightRender";
+import {highlightRender, lineNumberRender} from "../render/highlightRender";
 import {processRender} from "../util/processCode";
 import {isIPhone, isSafari, openByMobile, setStorageVal} from "../util/compatibility";
 import {useShell} from "../../util/pathName";
@@ -52,7 +52,14 @@ export const exportImage = (id: string) => {
 </div>
  <div class="fn__loading"><img height="128px" width="128px" src="stage/loading-pure.svg"></div>`,
         width: isMobile() ? "92vw" : "990px",
-        height: "70vh"
+        height: "70vh",
+        resizeCallback() {
+            previewElement.querySelectorAll(".code-block .protyle-linenumber__rows").forEach((item: HTMLElement) => {
+                if ((item.nextElementSibling as HTMLElement).style.wordBreak === "break-word") {
+                    lineNumberRender(item.parentElement);
+                }
+            });
+        }
     });
     exportDialog.element.setAttribute("data-key", Constants.DIALOG_EXPORTIMAGE);
     const btnsElement = exportDialog.element.querySelectorAll(".b3-button");