1 files changed, 1 insertions, 1 deletions
diff --git a/os/src/write.c b/os/src/write.c
index 268c0f1..14e26d6 100644
--- a/os/src/write.c
+++ b/os/src/write.c
@@ -4,7 +4,7 @@
 #include "fio.h"
 
 _ssize_t _write_r(struct _reent * reent, int fd, const void * buf, size_t size) {
-    int r;
+    _ssize_t r;
     
     if (!fio_is_open(fd)) {
         reent->_errno = EBADF;