diff --git a/debian/rules b/debian/rules
index 8498559..cd5409c 100755
--- a/debian/rules
+++ b/debian/rules
@@ -2,7 +2,8 @@
 
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 export DEB_BUILD_HARDENING=1
--include /usr/share/dpkg/buildflags.mk
+include /usr/share/dpkg/buildflags.mk
+-include /usr/share/dpkg/buildtools.mk
 export CC
 
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