1 files changed, 1 insertions, 0 deletions
diff --git a/intern.h b/intern.h
index 8042ba492b..8ab5cd3d96 100644
--- a/intern.h
+++ b/intern.h
@@ -164,6 +164,7 @@ void rb_dvar_asgn _((ID, VALUE));
 void rb_dvar_push _((ID, VALUE));
 VALUE *rb_svar _((int));
 VALUE rb_eval_cmd _((VALUE, VALUE, int));
+int rb_obj_respond_to _((VALUE, ID, int));
 int rb_respond_to _((VALUE, ID));
 void rb_interrupt _((void));
 VALUE rb_apply _((VALUE, ID, VALUE));