1 files changed, 1 insertions, 0 deletions
diff --git a/sfntly/table/core/cmap_table.h b/sfntly/table/core/cmap_table.h
index bbdc7b5..326236f 100644
--- a/sfntly/table/core/cmap_table.h
+++ b/sfntly/table/core/cmap_table.h
@@ -91,6 +91,7 @@ public:
     ~CMapIdFilter() {}
     virtual bool accept(const CMapId& cmap_id) const;
    private:
+    CMapId& operator=(const CMapId& that);
     const CMapId wanted_id_;
     const CMapIdComparator *comparator_;
   };