diff --git a/app/src/protyle/wysiwyg/index.ts b/app/src/protyle/wysiwyg/index.ts
index bcc169aae..dba8efde0 100644
--- a/app/src/protyle/wysiwyg/index.ts
+++ b/app/src/protyle/wysiwyg/index.ts
@@ -443,7 +443,7 @@ export class WYSIWYG {
                         action: "setAttrViewColWidth",
                         id: dragColId,
                         avID: avId,
-                        data: newWidth,
+                        data: newWidth + "px",
                         blockID
                     }], [{
                         action: "setAttrViewColWidth",