diff --git a/linker/linker.h b/linker/linker.h
index c793b6e..d364021 100644
--- a/linker/linker.h
+++ b/linker/linker.h
@@ -312,6 +312,7 @@
   }
 
   bool is_linked() const;
+  bool is_linker() const;
   bool is_main_executable() const;
 
   void set_linked();