diff --git a/ghostscript-incomplete-ccittfax.patch b/ghostscript-incomplete-ccittfax.patch
new file mode 100644
index 0000000..4522e60
--- /dev/null
+++ b/ghostscript-incomplete-ccittfax.patch
@@ -0,0 +1,12 @@
+diff -up ghostscript-8.62/src/scfd.c.incomplete-ccittfax ghostscript-8.62/src/scfd.c
+--- ghostscript-8.62/src/scfd.c.incomplete-ccittfax	2007-09-25 14:31:24.000000000 +0100
++++ ghostscript-8.62/src/scfd.c	2008-06-23 14:58:17.000000000 +0100
+@@ -161,7 +161,7 @@ s_CFD_release(stream_state * st)
+ /* makeup codes efficiently, since these are always a multiple of 64. */
+ #define invert_data(rlen, black_byte, makeup_action, d)\
+ 	if ( rlen > qbit )\
+-	{	*q++ ^= (1 << qbit) - 1;\
++	{	if (q >= ss->lbuf) *q++ ^= (1 << qbit) - 1; else q++;\
+ 		rlen -= qbit;\
+ 		switch ( rlen >> 3 )\
+ 		{\
diff --git a/ghostscript.spec b/ghostscript.spec
index a00bf79..87ff656 100644
--- a/ghostscript.spec
+++ b/ghostscript.spec
@@ -22,6 +22,7 @@ Patch5: ghostscript-runlibfileifexists.patch
 Patch6: ghostscript-system-jasper.patch
 Patch7: ghostscript-pksmraw.patch
 Patch8: ghostscript-r8591.patch
+Patch9: ghostscript-incomplete-ccittfax.patch
 
 Requires: urw-fonts >= 1.1, ghostscript-fonts
 BuildRequires: libjpeg-devel, libXt-devel
@@ -100,6 +101,9 @@ rm -rf libpng zlib jpeg jasper
 # Applied patch from upstream to fix box_fill_path for shfill (bug #452348).
 %patch8 -p1 -b .r8591
 
+# Applied patch to work around bug #229174.
+%patch9 -p1 -b .incomplete-ccittfax
+
 # Convert manual pages to UTF-8
 from8859_1() {
 	iconv -f iso-8859-1 -t utf-8 < "$1" > "${1}_"
@@ -274,6 +278,7 @@ rm -rf $RPM_BUILD_ROOT
 
 %changelog
 * Mon Jun 23 2008 Tim Waugh <twaugh@redhat.com>
+- Applied patch to work around bug #229174.
 - Applied patch from upstream to fix box_fill_path for shfill (bug #452348).
 
 * Mon Mar 31 2008 Tim Waugh <twaugh@redhat.com> 8.62-3