1 files changed, 1 insertions, 1 deletions
diff --git a/ruby.c b/ruby.c
index afe1e71ae8..77d8c37d5c 100644
--- a/ruby.c
+++ b/ruby.c
@@ -226,7 +226,7 @@ translate_char(p, from, to)
 #ifdef CharNext		/* defined as CharNext[AW] on Windows. */
 	p = CharNext(p);
 #else
-	p += mblen(p, MB_CUR_MAX);
+	p += mblen(p, RUBY_MBCHAR_MAXSIZE);
 #endif
     }
 }