diff --git a/texworks-0.4.0-64bit.patch b/texworks-0.4.0-64bit.patch
new file mode 100644
index 0000000..0b3f577
--- /dev/null
+++ b/texworks-0.4.0-64bit.patch
@@ -0,0 +1,18 @@
+diff -up texworks-0.4.0/TeXworks.pro.64bit texworks-0.4.0/TeXworks.pro
+--- texworks-0.4.0/TeXworks.pro.64bit	2011-03-30 20:01:49.000000000 +0200
++++ texworks-0.4.0/TeXworks.pro	2011-03-30 20:02:00.000000000 +0200
+@@ -107,6 +107,14 @@ linux-g++ {
+ 	LIBS		+= -lz
+ }
+ 
++linux-g++-64 {
++	# Qt/dbus config on Debian is broken, hence the lines below
++	LIBS		+= -lQtDBus
++	INCLUDEPATH	+= /usr/include/qt4/QtDBus
++	# needed to link successfully on Fedora, apparently
++	LIBS		+= -lz
++}
++
+ openbsd-g++ {
+ 	# Same bug exists in OpenBSD/qt4
+ 	LIBS		+= -lQtDBus
diff --git a/texworks.spec b/texworks.spec
index 0d7f177..63c3827 100644
--- a/texworks.spec
+++ b/texworks.spec
@@ -3,7 +3,7 @@
 
 Name:           texworks
 Version:        0.4.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        A simple IDE for authoring TeX documents
 
 
@@ -11,6 +11,7 @@ Group:          Applications/Editors
 License:        GPLv2+
 URL:            http://tug.org/texworks/
 Source0:        http://texworks.googlecode.com/files/%{name}-%{version}-r%{rev}.tar.gz
+Patch0:         %{name}-0.4.0-64bit.patch
 
 BuildRequires:  hunspell-devel
 BuildRequires:  dbus-devel
@@ -30,6 +31,7 @@ You may install the texlive-* packages to make this program useful.
 
 %prep
 %setup -q
+%patch0 -p1 -b .64bit
 # pkg-config file of Lua
 perl -pi -e 's/(?<=lua)5\..*//' plugins-src/TWLuaPlugin/TWLuaPlugin.pro
 # Python version
@@ -100,6 +102,9 @@ update-desktop-database &> /dev/null || :
 
 
 %changelog
+* Wed Mar 30 2011 Dan Horák <dan[at]danny.cz> - 0.4.0-2
+- fix build on non-x86 64-bit platforms
+
 * Fri Mar 25 2011 Robin Lee <cheeselee@fedoraproject.org> - 0.4.0-1
 - Update to 0.4.0
 - Use uptream desktop entry file