Index: uspace/srv/fs/exfat/exfat_ops.c
===================================================================
--- uspace/srv/fs/exfat/exfat_ops.c	(revision 951f32ce8d4ff8508530ae4ef61d13827f1b2c0f)
+++ uspace/srv/fs/exfat/exfat_ops.c	(revision d0a1e9b64b5ef6dfd3ac6d90e0c04dbd1b0ee23e)
@@ -89,5 +89,5 @@
 static bool exfat_is_file(fs_node_t *node);
 static service_id_t exfat_service_get(fs_node_t *node);
-static long exfat_size_block(service_id_t);
+static uint32_t exfat_size_block(service_id_t);
 
 /*
@@ -913,5 +913,5 @@
 }
 
-long exfat_size_block(service_id_t service_id)
+uint32_t exfat_size_block(service_id_t service_id)
 {
 	exfat_bs_t *bs;