diff --git a/lfs/tripwire b/lfs/tripwire
index 0c96a58a9..75a7c3021 100644
--- a/lfs/tripwire
+++ b/lfs/tripwire
@@ -33,6 +33,8 @@ DL_FILE    = $(THISAPP)-src.tar.bz2
 DL_FROM    = $(URL_IPFIRE)
 DIR_APP    = $(DIR_SRC)/$(THISAPP)
 TARGET     = $(DIR_INFO)/$(THISAPP)
+CFLAGS     =
+CXXFLAGS   = 
 PROG       = tripwire
 PAK_VER    = 1