diff --git a/debian/_base/dependencies/tqtinterface/debian/rules b/debian/_base/dependencies/tqtinterface/debian/rules
index 530f77b52..1e56fa6e0 100755
--- a/debian/_base/dependencies/tqtinterface/debian/rules
+++ b/debian/_base/dependencies/tqtinterface/debian/rules
@@ -6,11 +6,17 @@ include debian/cdbs/debian-tde.mk
 
 version=Debian Package $(DEB_VERSION)
 DEB_OPT_FLAG += -DDEBIAN_VERSION=$(DEB_VERSION)
-DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
+
+ifdef DEB_HOST_MULTIARCH
+  CMAKE_INSTALL_LIBDIR = lib/$(DEB_HOST_MULTIARCH)
+else
+  CMAKE_INSTALL_LIBDIR = lib
+endif
 
 DEB_CMAKE_EXTRA_FLAGS := \
  -DCMAKE_EXPORT_COMPILE_COMMANDS="ON" \
  -DCMAKE_INSTALL_PREFIX="/usr" \
  -DCMAKE_VERBOSE_MAKEFILE="ON" \
  -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+ -DCMAKE_INSTALL_LIBDIR=$(CMAKE_INSTALL_LIBDIR) \
  -DWITH_QT3="ON"
diff --git a/ubuntu/_base/dependencies/tqtinterface/debian/rules b/ubuntu/_base/dependencies/tqtinterface/debian/rules
index 530f77b52..1e56fa6e0 100755
--- a/ubuntu/_base/dependencies/tqtinterface/debian/rules
+++ b/ubuntu/_base/dependencies/tqtinterface/debian/rules
@@ -6,11 +6,17 @@ include debian/cdbs/debian-tde.mk
 
 version=Debian Package $(DEB_VERSION)
 DEB_OPT_FLAG += -DDEBIAN_VERSION=$(DEB_VERSION)
-DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
+
+ifdef DEB_HOST_MULTIARCH
+  CMAKE_INSTALL_LIBDIR = lib/$(DEB_HOST_MULTIARCH)
+else
+  CMAKE_INSTALL_LIBDIR = lib
+endif
 
 DEB_CMAKE_EXTRA_FLAGS := \
  -DCMAKE_EXPORT_COMPILE_COMMANDS="ON" \
  -DCMAKE_INSTALL_PREFIX="/usr" \
  -DCMAKE_VERBOSE_MAKEFILE="ON" \
  -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+ -DCMAKE_INSTALL_LIBDIR=$(CMAKE_INSTALL_LIBDIR) \
  -DWITH_QT3="ON"