diff --git a/debian/rules b/debian/rules
index f9196b82..dfcf2cc8 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,4 +1,5 @@
 #!/usr/bin/make -f
+include /usr/share/dpkg/architecture.mk
 
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 
@@ -7,7 +8,7 @@ export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 
 override_dh_auto_configure:
 	BASHCMD=/bin/bash ./configure --prefix=/usr \
-		--libdir=/usr/lib/$$(dpkg-architecture -q DEB_TARGET_MULTIARCH) \
+		--libdir=/usr/lib/${DEB_TARGET_MULTIARCH} \
 		--includedir=/usr/include \
 		--mandir=/usr/share/man \
 		--infodir=/usr/share/info \