Index: uspace/lib/libfs/libfs.c
===================================================================
--- uspace/lib/libfs/libfs.c	(revision 3ecc02eac7d067436e7876f91133503ea5412e5e)
+++ uspace/lib/libfs/libfs.c	(revision 16d17cadb46bf0e334a93ad589d0d55a03e68cb2)
@@ -128,5 +128,6 @@
 }
 
-void libfs_mount(libfs_ops_t *ops, ipc_callid_t rid, ipc_call_t *request)
+void libfs_mount(libfs_ops_t *ops, fs_handle_t fs_handle, ipc_callid_t rid,
+    ipc_call_t *request)
 {
 	dev_handle_t mp_dev_handle = (dev_handle_t) IPC_GET_ARG1(*request);
Index: uspace/lib/libfs/libfs.h
===================================================================
--- uspace/lib/libfs/libfs.h	(revision 3ecc02eac7d067436e7876f91133503ea5412e5e)
+++ uspace/lib/libfs/libfs.h	(revision 16d17cadb46bf0e334a93ad589d0d55a03e68cb2)
@@ -82,5 +82,5 @@
 extern void fs_node_initialize(fs_node_t *);
 
-extern void libfs_mount(libfs_ops_t *, ipc_callid_t, ipc_call_t *);
+extern void libfs_mount(libfs_ops_t *, fs_handle_t, ipc_callid_t, ipc_call_t *);
 extern void libfs_lookup(libfs_ops_t *, fs_handle_t, ipc_callid_t, ipc_call_t *);
 
Index: uspace/srv/fs/fat/fat_ops.c
===================================================================
--- uspace/srv/fs/fat/fat_ops.c	(revision 3ecc02eac7d067436e7876f91133503ea5412e5e)
+++ uspace/srv/fs/fat/fat_ops.c	(revision 16d17cadb46bf0e334a93ad589d0d55a03e68cb2)
@@ -889,5 +889,5 @@
 void fat_mount(ipc_callid_t rid, ipc_call_t *request)
 {
-	libfs_mount(&fat_libfs_ops, rid, request);
+	libfs_mount(&fat_libfs_ops, fat_reg.fs_handle, rid, request);
 }
 
Index: uspace/srv/fs/tmpfs/tmpfs_ops.c
===================================================================
--- uspace/srv/fs/tmpfs/tmpfs_ops.c	(revision 3ecc02eac7d067436e7876f91133503ea5412e5e)
+++ uspace/srv/fs/tmpfs/tmpfs_ops.c	(revision 16d17cadb46bf0e334a93ad589d0d55a03e68cb2)
@@ -410,5 +410,5 @@
 void tmpfs_mount(ipc_callid_t rid, ipc_call_t *request)
 {
-	libfs_mount(&tmpfs_libfs_ops, rid, request);
+	libfs_mount(&tmpfs_libfs_ops, tmpfs_reg.fs_handle, rid, request);
 }