diff --git a/base/usr/include/sys/stat.h b/base/usr/include/sys/stat.h
index f9937e9d..17c7d53e 100644
--- a/base/usr/include/sys/stat.h
+++ b/base/usr/include/sys/stat.h
@@ -16,10 +16,10 @@ struct stat  {
 	uint16_t  st_uid;
 	uint16_t  st_gid;
 	uint16_t  st_rdev;
-	uint32_t  st_size;
+	int32_t  st_size;
 	uint32_t  st_atime;
 	uint32_t  __unused1;
-	uint32_t  st_mtime;
+	int32_t  st_mtime;
 	uint32_t  __unused2;
 	uint32_t  st_ctime;
 	uint32_t  __unused3;