use right type for offset in sysread() or syswrite()

1 files changed, 1 insertions, 1 deletions

diff --git a/pp_sys.c b/pp_sys.c
index c5d63ac5a5..f0a799e238 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -1711,7 +1711,7 @@ PP(pp_sysread)
     }
     if (DO_UTF8(bufsv)) {
 	/* convert offset-as-chars to offset-as-bytes */
-	if (offset >= (int)blen)
+	if (offset >= (SSize_t)blen)
 	    offset += SvCUR(bufsv) - blen;
 	else
 	    offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;