diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 2889665..2e58182 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1930,7 +1930,7 @@
 
 extern void ext4_validate_block_bitmap(struct super_block *sb,
 				       struct ext4_group_desc *desc,
-				       unsigned int block_group,
+				       ext4_group_t block_group,
 				       struct buffer_head *bh);
 extern unsigned int ext4_block_group(struct super_block *sb,
 			ext4_fsblk_t blocknr);