diff --git a/gimp-2.6.11-pyslice.patch b/gimp-2.6.11-pyslice.patch
new file mode 100644
index 0000000..2f37990
--- /dev/null
+++ b/gimp-2.6.11-pyslice.patch
@@ -0,0 +1,36 @@
+From 0b46212d99191b65a1dd2f723c9cf0250e69a448 Mon Sep 17 00:00:00 2001
+From: Nils Philippsen <nils@redhat.com>
+Date: Wed, 2 Feb 2011 18:19:35 +0100
+Subject: [PATCH] patch: pyslice
+
+Squashed commit of the following:
+
+commit 0b91c365bc1d43a888ed9b78439930c1235b609c
+Author: Nils Philippsen <nils@redhat.com>
+Date:   Wed Feb 2 17:11:28 2011 +0100
+
+    Bug 641259 - [abrt] gimp-2:2.6.11-1.fc14: py-slice.py:172:slice:TypeError: integer argument expected, got float
+
+    py-slice: cast cellspacing to int in pyslice() to avoid tracebacks
+    (cherry picked from commit 0af966b63fcc55b36380d6538dfb30000f71fef9)
+---
+ plug-ins/pygimp/plug-ins/py-slice.py |    3 +++
+ 1 files changed, 3 insertions(+), 0 deletions(-)
+
+diff --git a/plug-ins/pygimp/plug-ins/py-slice.py b/plug-ins/pygimp/plug-ins/py-slice.py
+index 40743f3..ac35f23 100755
+--- a/plug-ins/pygimp/plug-ins/py-slice.py
++++ b/plug-ins/pygimp/plug-ins/py-slice.py
+@@ -36,6 +36,9 @@ gettext.install("gimp20-python", gimp.locale_directory, unicode=True)
+ def pyslice(image, drawable, save_path, html_filename,
+             image_basename, image_extension, separate,
+             image_path, cellspacing, animate, skip_caps):
++
++    cellspacing = int (cellspacing)
++
+     if animate:
+         count = 0
+         drw = []
+-- 
+1.7.4
+
diff --git a/gimp.spec b/gimp.spec
index 30fd9b7..97e1ece 100644
--- a/gimp.spec
+++ b/gimp.spec
@@ -31,7 +31,7 @@ Summary:        GNU Image Manipulation Program
 Name:           gimp
 Epoch:          2
 Version:        2.6.11
-Release:        5%{?dist}
+Release:        6%{?dist}
 %define binver 2.6
 %define gimp_lang_ver 20
 %define interfacever 2.0
@@ -134,6 +134,9 @@ Patch4:         gimp-2.6.10-script-fu-ipv6.patch
 # https://bugzilla.redhat.com/show_bug.cgi?id=651002
 # avoid traceback in colorxhtml plugin, upstreamed
 Patch5:         gimp-2.6.11-colorxhtml.patch
+# https://bugzilla.redhat.com/show_bug.cgi?id=667958
+# avoid traceback in pyslice plugin, upstreamed
+Patch6:         gimp-2.6.11-pyslice.patch
 # files changed by autoreconf after applying the above
 Patch10:        gimp-2.6.11-1-autoreconf.patch.bz2
 
@@ -213,12 +216,15 @@ build ASCII art plugin                    %{with aalib}
 EOF
 
 %setup -q -n gimp-%{version}
+
 %patch0 -p1 -b .xdg-open
 %patch1 -p1 -b .jpeg-units
 %patch2 -p1 -b .minimize-dialogs
 %patch3 -p1 -b .gold
 %patch4 -p1 -b .script-fu-ipv6
 %patch5 -p1 -b .colorxhtml
+%patch6 -p1 -b .pyslice
+
 %patch10 -p1 -b .autoreconf
 
 %build
@@ -482,6 +488,9 @@ fi
 %{_libdir}/gimp/%{interfacever}/plug-ins/help-browser
 
 %changelog
+* Wed Feb 02 2011 Nils Philippsen <nils@redhat.com> - 2:2.6.11-6
+- avoid traceback in pyslice plugin (#667958)
+
 * Sat Jan 01 2011 Rex Dieter <rdieter@fedoraproject.org> - 2:2.6.11-5
 - rebuild (poppler)