diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c
index 1727da2..f10c622 100644
--- a/fs/ext4/ext4fs.c
+++ b/fs/ext4/ext4fs.c
@@ -101,7 +101,7 @@
 	blockcnt = lldiv(((len + pos) + blocksize - 1), blocksize);
 
 	for (i = lldiv(pos, blocksize); i < blockcnt; i++) {
-		long int blknr;
+		lbaint_t blknr;
 		int blockoff = pos - (blocksize * i);
 		int blockend = blocksize;
 		int skipfirst = 0;