Index: uspace/lib/libc/generic/vfs/vfs.c
===================================================================
--- uspace/lib/libc/generic/vfs/vfs.c	(revision e035612a97a6dc9b7ae6bd3dc822df045dd8afdf)
+++ uspace/lib/libc/generic/vfs/vfs.c	(revision 81342f721696310b9531caaff48b0e5a37182a5e)
@@ -664,4 +664,6 @@
 char *getcwd(char *buf, size_t size)
 {
+	if (!cwd_size)
+		return NULL;
 	if (!size)
 		return NULL;