diff --git a/tools/xenstore/Makefile b/tools/xenstore/Makefile
index 773d646..3b0ff16 100644
--- a/tools/xenstore/Makefile
+++ b/tools/xenstore/Makefile
@@ -5,6 +5,7 @@ MAJOR = 3.0
MINOR = 3
CFLAGS += -Werror
+CFLAGS += -Wno-bool-operation
CFLAGS += -I.
# Include configure output (config.h)
CFLAGS += -include $(XEN_ROOT)/tools/config.h