diff -urN ibus-qt-1.3.1/debian/control multiarch/ibus-qt-1.3.1/debian/control
--- ibus-qt-1.3.1/debian/control	2011-10-19 02:39:53.000000000 +0900
+++ multiarch/ibus-qt-1.3.1/debian/control	2012-11-10 18:14:27.368846342 +0900
@@ -14,6 +14,8 @@
 
 Package: ibus-qt4
 Architecture: any
+Multi-Arch: same
+Pre-Depends: ${misc:Pre-Depends}
 Depends: ${shlibs:Depends}, ${misc:Depends}
 Description: qt-immodule for ibus (QT4)
  IBus is an Intelligent Input Bus. It is a new input framework for Linux
@@ -25,6 +27,8 @@
 Package: libibus-qt1
 Section: libs
 Architecture: any
+Multi-Arch: same
+Pre-Depends: ${misc:Pre-Depends}
 Depends: ${shlibs:Depends}, ${misc:Depends}
 Description: qt-immodule for ibus (QT4)
  IBus is an Intelligent Input Bus. It is a new input framework for Linux
@@ -36,6 +40,8 @@
 Package: libibus-qt-dev
 Section: libdevel
 Architecture: any
+Multi-Arch: foreign
+Pre-Depends: ${misc:Pre-Depends}
 Depends: libibus-qt1 (= ${binary:Version}), libqt4-dev, libibus-1.0-dev, libdbus-1-dev, ${shlibs:Depends}, ${misc:Depends}
 Description: qt-immodule for ibus (QT4)
  IBus is an Intelligent Input Bus. It is a new input framework for Linux
diff -urN ibus-qt-1.3.1/debian/libibus-qt-dev.install multiarch/ibus-qt-1.3.1/debian/libibus-qt-dev.install
--- ibus-qt-1.3.1/debian/libibus-qt-dev.install	2011-09-05 10:21:08.000000000 +0900
+++ multiarch/ibus-qt-1.3.1/debian/libibus-qt-dev.install	2012-11-08 07:41:08.359658856 +0900
@@ -1,2 +1,2 @@
 debian/tmp/usr/include/*
-debian/tmp/usr/lib/libibus-qt.so
+debian/tmp/usr/lib/*/libibus-qt.so
diff -urN ibus-qt-1.3.1/debian/libibus-qt1.install multiarch/ibus-qt-1.3.1/debian/libibus-qt1.install
--- ibus-qt-1.3.1/debian/libibus-qt1.install	2011-09-05 10:21:08.000000000 +0900
+++ multiarch/ibus-qt-1.3.1/debian/libibus-qt1.install	2012-11-08 07:29:35.459665467 +0900
@@ -1 +1 @@
- debian/tmp/usr/lib/libibus-qt.so.1*
+ debian/tmp/usr/lib/*/libibus-qt.so.1*
diff -urN ibus-qt-1.3.1/debian/rules multiarch/ibus-qt-1.3.1/debian/rules
--- ibus-qt-1.3.1/debian/rules	2011-10-19 02:39:30.000000000 +0900
+++ multiarch/ibus-qt-1.3.1/debian/rules	2012-11-08 07:25:40.459667708 +0900
@@ -1,4 +1,7 @@
 #!/usr/bin/make -f
+
+DEB_HOST_MULTIARCH	?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
+
 %:
 	dh $@
 
@@ -8,3 +11,7 @@
 override_dh_makeshlibs:
 	        dh_makeshlibs -Nibus-qt4
 
+override_dh_auto_install:
+	dh_auto_install
+	mkdir -p debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/
+	mv debian/tmp/usr/lib/libibus-qt.so* debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/