1 files changed, 2 insertions, 1 deletions

diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index 6f92f732d253..c3ecc2a84e0c 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -320,7 +320,8 @@ int os_file_size(char *file, unsigned long long *size_out)
         }
 
         if(S_ISBLK(buf.ust_mode)){
-                int fd, blocks;
+                int fd;
+                long blocks;
 
                 fd = os_open_file(file, of_read(OPENFLAGS()), 0);
                 if(fd < 0){