diff --git a/tools/guest-headers/Makefile b/tools/guest-headers/Makefile
index aa6559ff2d..2033cb2caf 100644
--- a/tools/guest-headers/Makefile
+++ b/tools/guest-headers/Makefile
@@ -2,6 +2,8 @@
 XEN_ROOT=../..
 linuxsparsetree = $(XEN_ROOT)/linux-2.6-xen-sparse
 
+all:
+
 check:
 
 install: