diff --git a/cups-str3947.patch b/cups-str3947.patch
new file mode 100644
index 0000000..9bff194
--- /dev/null
+++ b/cups-str3947.patch
@@ -0,0 +1,26 @@
+diff -up cups-1.5.0/notifier/dbus.c.str3947 cups-1.5.0/notifier/dbus.c
+--- cups-1.5.0/notifier/dbus.c.str3947	2011-03-04 16:55:59.000000000 +0000
++++ cups-1.5.0/notifier/dbus.c	2011-09-28 10:42:56.298760622 +0100
+@@ -4,7 +4,7 @@
+  *   D-Bus notifier for CUPS.
+  *
+  *   Copyright 2008-2010 by Apple Inc.
+- *   Copyright (C) 2007 Red Hat, Inc.
++ *   Copyright (C) 2011 Red Hat, Inc.
+  *   Copyright (C) 2007 Tim Waugh <twaugh@redhat.com>
+  *   Copyright 1997-2005 by Easy Software Products.
+  *
+@@ -423,10 +423,11 @@ main(int  argc,				/* I - Number of comm
+ 	  p = printer_reasons;
+ 	  for (i = 0; i < attr->num_values; i++)
+ 	  {
+-	    strcpy(p, attr->values[i].string.text);
+-	    p += strlen(p);
+ 	    if (i)
+ 	      *p++ = ',';
++
++	    strcpy(p, attr->values[i].string.text);
++	    p += strlen(p);
+ 	  }
+ 	  dbus_message_iter_append_string(&iter, &printer_reasons);
+ 	}
diff --git a/cups.spec b/cups.spec
index 2bb788d..2c1750d 100644
--- a/cups.spec
+++ b/cups.spec
@@ -13,7 +13,7 @@
 Summary: Common Unix Printing System
 Name: cups
 Version: 1.5.0
-Release: 9%{?dist}
+Release: 10%{?dist}
 License: GPLv2
 Group: System Environment/Daemons
 Source: http://ftp.easysw.com/pub/cups/%{version}/cups-%{version}-source.tar.bz2
@@ -56,6 +56,7 @@ Patch20: cups-filter-debug.patch
 Patch21: cups-uri-compat.patch
 Patch22: cups-cups-get-classes.patch
 Patch23: cups-str3382.patch
+Patch24: cups-str3947.patch
 Patch25: cups-0755.patch
 Patch26: cups-snmp-quirks.patch
 Patch27: cups-hp-deviceid-oid.patch
@@ -263,6 +264,8 @@ Sends IPP requests to the specified URI and tests and/or displays the results.
 %patch22 -p1 -b .cups-get-classes
 # Fix temporary filename creation.
 %patch23 -p1 -b .str3382
+# Fixed string manipulation in the dbus notifier (STR #3947, bug #741833).
+%patch24 -p1 -b .str3947
 # Use mode 0755 for binaries and libraries where appropriate.
 %patch25 -p1 -b .0755
 # Handle SNMP supply level quirks (bug #581825).
@@ -639,6 +642,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_mandir}/man1/ipptool.1.gz
 
 %changelog
+* Wed Sep 28 2011 Tim Waugh <twaugh@redhat.com> 1:1.5.0-10
+- Fixed string manipulation in the dbus notifier (STR #3947, bug #741833).
+
 * Thu Sep 22 2011 Tim Waugh <twaugh@redhat.com> 1:1.5.0-9
 - Fixed systemd socket activation support (bug #738709, bug #738710).