diff --git a/fs_defs.h b/fs_defs.h
index 1dc880b..588f0c0 100644
--- a/fs_defs.h
+++ b/fs_defs.h
@@ -44,17 +44,17 @@ typedef struct FSCmdBlock_ {
 
 typedef struct
 {
-    uint32_t flag;
-    uint32_t permission;
-    uint32_t owner_id;
-    uint32_t group_id;
-    uint32_t size;
-    uint32_t alloc_size;
-    uint64_t quota_size;
-    uint32_t ent_id;
-    uint64_t ctime;
-    uint64_t mtime;
-    uint8_t attributes[48];
+    u32 flag;
+    u32 permission;
+    u32 owner_id;
+    u32 group_id;
+    u32 size;
+    u32 alloc_size;
+    u64 quota_size;
+    u32 ent_id;
+    u64 ctime;
+    u64 mtime;
+    u8 attributes[48];
 } __attribute__((packed)) FSStat;
 
 typedef struct
@@ -63,7 +63,7 @@ typedef struct
     char        name[FS_MAX_ENTNAME_SIZE];
 } FSDirEntry;
 
-typedef void (*FSAsyncCallback)(FSClient * pClient, FSCmdBlock * pCmd, int result, void *context);
+typedef void (*FSAsyncCallback)(FSClient * pClient, FSCmdBlock * pCmd, s32 result, void *context);
 typedef struct
 {
     FSAsyncCallback userCallback;