1 files changed, 3 insertions, 3 deletions
diff --git a/mrbgems/mruby-string-ext/src/string.c b/mrbgems/mruby-string-ext/src/string.c
index ba7e3c610..85180516c 100644
--- a/mrbgems/mruby-string-ext/src/string.c
+++ b/mrbgems/mruby-string-ext/src/string.c
@@ -58,11 +58,11 @@ mrb_str_byteslice(mrb_state *mrb, mrb_value str)
 
       len = RSTRING_LEN(str);
       switch (mrb_range_beg_len(mrb, a1, &beg, &len, len, TRUE)) {
-      case 0:                   /* not range */
+      case MRB_RANGE_TYPE_MISMATCH:
         break;
-      case 1:                   /* range */
+      case MRB_RANGE_OK:
         return mrb_str_substr(mrb, str, beg, len);
-      case 2:                   /* out of range */
+      case MRB_RANGE_OUT:
         mrb_raisef(mrb, E_RANGE_ERROR, "%S out of range", a1);
         break;
       }