diff --git a/examples/c++/glr/c++-types.yy b/examples/c++/glr/c++-types.yy
index 266bd100..8399b4f9 100644
--- a/examples/c++/glr/c++-types.yy
+++ b/examples/c++/glr/c++-types.yy
@@ -60,6 +60,8 @@
   TYPENAME "typename"
   ID "identifier"
 
+%printer { yyo << $$; } TYPENAME ID stmt expr decl declarator
+
 %right '='
 %left '+'