diff --git a/Modules/cjkcodecs/multibytecodec.c b/Modules/cjkcodecs/multibytecodec.c
index aa0096a..7e6aedc 100644
--- a/Modules/cjkcodecs/multibytecodec.c
+++ b/Modules/cjkcodecs/multibytecodec.c
@@ -831,7 +831,7 @@
 {
 	while (buf->inbuf < buf->inbuf_end) {
 		Py_ssize_t inleft, outleft;
-		int r;
+		Py_ssize_t r;
 
 		inleft = (Py_ssize_t)(buf->inbuf_end - buf->inbuf);
 		outleft = (Py_ssize_t)(buf->outbuf_end - buf->outbuf);