1 files changed, 3 insertions, 0 deletions
diff --git a/proc.c b/proc.c
index 9f2a46416d..5ee01f76b5 100644
--- a/proc.c
+++ b/proc.c
@@ -1616,6 +1616,9 @@ method_inspect(VALUE method)
     }
     rb_str_buf_cat2(str, sharp);
     rb_str_append(str, rb_id2str(data->oid));
+    if (rb_notimplement_body_p(data->body)) {
+        rb_str_buf_cat2(str, " (not-implemented)");
+    }
     rb_str_buf_cat2(str, ">");
 
     return str;