diff --git a/ext4_utils/extent.c b/ext4_utils/extent.c
index 1d2581d..daa2541 100644
--- a/ext4_utils/extent.c
+++ b/ext4_utils/extent.c
@@ -14,16 +14,16 @@
  * limitations under the License.
  */
 
-#include <stdlib.h>
-#include <stdio.h>
-
 #include "ext4_utils.h"
 #include "ext4.h"
 #include "ext4_extents.h"
 #include "backed_block.h"
-
 #include "extent.h"
 
+#include <stdlib.h>
+#include <stdio.h>
+
+
 /* Creates data buffers for the first backing_len bytes of a block allocation
    and queues them to be written */
 static u8 *extent_create_backing(struct block_allocation *alloc,
@@ -55,7 +55,7 @@
 static void extent_create_backing_file(struct block_allocation *alloc,
 	u64 backing_len, const char *filename)
 {
-	off_t offset = 0;
+	off64_t offset = 0;
 	for (; alloc != NULL && backing_len > 0; get_next_region(alloc)) {
 		u32 region_block;
 		u32 region_len;