Index: uspace/srv/fs/fat/fat_ops.c
===================================================================
--- uspace/srv/fs/fat/fat_ops.c	(revision 9fec913f8d3f50205fec6764b0642b2ba4a893d9)
+++ uspace/srv/fs/fat/fat_ops.c	(revision 471569b9742d10c8ea2185e252b3b231755a8a6e)
@@ -812,4 +812,5 @@
 	fibril_mutex_unlock(&childp->idx->lock);
 	childp->lnkcnt = 0;
+	childp->refcnt++;	/* keep the node in memory until destroyed */
 	childp->dirty = true;
 	fibril_mutex_unlock(&childp->lock);
@@ -1489,4 +1490,5 @@
 	fs_index_t index = (fs_index_t)IPC_GET_ARG2(*request);
 	fs_node_t *fn;
+	fat_node_t *nodep;
 	int rc;
 
@@ -1500,4 +1502,11 @@
 		return;
 	}
+
+	nodep = FAT_NODE(fn);
+	/*
+	 * We should have exactly two references. One for the above
+	 * call to fat_node_get() and one from fat_unlink().
+	 */
+	assert(nodep->refcnt == 2);
 
 	rc = fat_destroy_node(fn);