Index: uspace/srv/fs/tmpfs/tmpfs_dump.c
===================================================================
--- uspace/srv/fs/tmpfs/tmpfs_dump.c	(revision 991f645937e5e281d6996ad4623f9ab33c71916d)
+++ uspace/srv/fs/tmpfs/tmpfs_dump.c	(revision 18783860abf4bec75bcd134c99e301cc50d280e8)
@@ -167,5 +167,5 @@
 	int rc;
 
-	rc = block_init(dev, TMPFS_COMM_SIZE);
+	rc = block_init(EXCHANGE_SERIALIZE, dev, TMPFS_COMM_SIZE);
 	if (rc != EOK)
 		return false;