diff --git a/py/gc.h b/py/gc.h
index 711212ac40..e5286cd861 100644
--- a/py/gc.h
+++ b/py/gc.h
@@ -18,3 +18,4 @@ typedef struct _gc_info_t {
 } gc_info_t;
 
 void gc_info(gc_info_t *info);
+void gc_dump_info(void);