diff --git a/src/calibre/gui2/metadata/diff.py b/src/calibre/gui2/metadata/diff.py
index 8813270a0e..f368b992c9 100644
--- a/src/calibre/gui2/metadata/diff.py
+++ b/src/calibre/gui2/metadata/diff.py
@@ -779,7 +779,7 @@ if __name__ == '__main__':
     gm = partial(db.get_metadata, index_is_id=True, get_cover=True, cover_as_data=True)
     get_metadata = lambda x:list(map(gm, ids[x]))
     d = CompareMany(list(range(len(ids))), get_metadata, db.field_metadata, db=db)
-    if d.exec() == QDialog.DialogCode.Accepted:
-        for changed, mi in itervalues(d.accepted):
-            if changed and mi is not None:
-                print(mi)
+    d.exec()
+    for changed, mi in itervalues(d.accepted):
+        if changed and mi is not None:
+            print(mi)