diff --git a/debian/rules b/debian/rules
index 37a18e1c..a444e928 100755
--- a/debian/rules
+++ b/debian/rules
@@ -4,6 +4,7 @@
 # Enable PIE, BINDNOW, and possible future flags.
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 DPKG_EXPORT_BUILDFLAGS = 1
+include /usr/share/dpkg/architecture.mk
 include /usr/share/dpkg/buildflags.mk
 include /usr/share/debhelper/dh_package_notes/package-notes.mk