1 files changed, 2 insertions, 1 deletions
diff --git a/enc/utf_16le.c b/enc/utf_16le.c
index bec3d22388..0dec8f98c5 100644
--- a/enc/utf_16le.c
+++ b/enc/utf_16le.c
@@ -56,7 +56,8 @@ static int
 utf16le_mbc_enc_len(const UChar* p, const OnigUChar* e,
 		    OnigEncoding enc ARG_UNUSED)
 {
-  int len = e-p, byte;
+  ptrdiff_t len = e - p;
+  UChar byte;
   if (len < 2)
     return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(1);
   byte = p[1];