diff --git a/.gitignore b/.gitignore
index 3c49ab7..86386d5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /*.gz
+/17.patch
diff --git a/pyflakes.spec b/pyflakes.spec
index c3e8fcb..e1da592 100644
--- a/pyflakes.spec
+++ b/pyflakes.spec
@@ -7,7 +7,7 @@
 
 Name:           pyflakes
 Version:        0.7.3
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        A simple program which checks Python source files for errors
 
 Group:          Development/Languages
@@ -15,7 +15,8 @@ License:        MIT
 URL:            https://launchpad.net/pyflakes
 
 Source0:        http://pypi.python.org/packages/source/p/pyflakes/pyflakes-%{version}.tar.gz
-Source1:        http://cdn.debian.net/debian/pool/main/p/pyflakes/pyflakes_0.7.2-1.debian.tar.gz
+Source1:        http://cdn.debian.net/debian/pool/main/p/pyflakes/pyflakes_0.7.3-1.debian.tar.gz
+Patch0:         https://github.com/pyflakes/pyflakes/pull/17.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 BuildArch:      noarch
@@ -46,6 +47,7 @@ Requires:       python3-setuptools
 
 %prep
 %setup -q -a 1
+%patch0 -p1
 %if %{with python3}
 rm -rf %{py3dir}
 cp -a . %{py3dir}
@@ -104,6 +106,10 @@ rm -rf %{buildroot}
 %endif
 
 %changelog
+* Wed Dec 11 2013 Ville Skyttä <ville.skytta@iki.fi> - 0.7.3-4
+- Avoid interfering with pies in version check (#1039706, Timothy Crosley).
+- Refresh Debian additions tarball.
+
 * Mon Sep  9 2013 Ville Skyttä <ville.skytta@iki.fi> - 0.7.3-3
 - Build Python 3 version (#1004668).
 - Add dependency on setuptools.
diff --git a/sources b/sources
index 5e52b8b..ea3b98b 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,3 @@
-9dc7fd9d4af01f16e749f202bc25d1d6  pyflakes_0.7.2-1.debian.tar.gz
 ec94ac11cb110e6e72cca23c104b66b1  pyflakes-0.7.3.tar.gz
+097eb9327c11731244703e35632f93eb  pyflakes_0.7.3-1.debian.tar.gz
+5159b1ae664fac6a0a7614df81949df8  17.patch