1 files changed, 1 insertions, 1 deletions
diff --git a/gc.c b/gc.c
index e164ed6c1d..af9879a47f 100644
--- a/gc.c
+++ b/gc.c
@@ -11208,7 +11208,7 @@ rb_raw_obj_info(char *buff, const int buff_size, VALUE obj)
 #undef IMEMO_NAME
 	      default: UNREACHABLE;
 	    }
-            APPENDF((BUFF_ARGS, "%s", imemo_name));
+            APPENDF((BUFF_ARGS, "/%s", imemo_name));
 
 	    switch (imemo_type(obj)) {
 	      case imemo_ment: {