1 files changed, 1 insertions, 1 deletions
diff --git a/src/string.c b/src/string.c
index eabf9f8ef..805b52a28 100644
--- a/src/string.c
+++ b/src/string.c
@@ -2811,7 +2811,7 @@ mrb_str_dump(mrb_state *mrb, mrb_value str)
             len++;
           }
           else {
-            len += 4;                /* \xNN */
+            len += 4;                /* \NNN */
           }
           break;
       }