diff --git a/src/daemon/Makefile.am b/src/daemon/Makefile.am
index 0d5f2f3..cc41a8a 100644
--- a/src/daemon/Makefile.am
+++ b/src/daemon/Makefile.am
@@ -108,7 +108,7 @@ CLEANFILES    += syscall-names.h
 syscall-names.h:
 	$(AM_V_GEN)
 	$(AM_V_at)echo "static const char *syscall_names[] = {" > $@ ;\
-	echo "#include <sys/syscall.h>" | cpp -dM | grep '^#define __NR_' | \
+	echo "#include <sys/syscall.h>" | $(CPP) -dM | grep '^#define __NR_' | \
 		LC_ALL=C sed -r -n -e 's/^\#define[ \t]+__NR_([a-z0-9_]+)[ \t]+([0-9]+)(.*)/ [\2] = "\1",/p' >> $@ ;\
 	echo "};" >> $@
 nodist_liblldpd_la_SOURCES += syscall-names.h