1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/kerncompat.h b/fs/btrfs/kerncompat.h
index 347ca06205c2..f5efc5f0fff0 100644
--- a/fs/btrfs/kerncompat.h
+++ b/fs/btrfs/kerncompat.h
@@ -15,7 +15,7 @@
 #define BUG() abort()
 
 typedef unsigned int u32;
-typedef unsigned long u64;
+typedef unsigned long long u64;
 typedef unsigned char u8;
 typedef unsigned short u16;