diff --git a/debian/changelog b/debian/changelog
index c03fca6..e0fc4b9 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -7,8 +7,10 @@ nut (2.6.4-2) UNRELEASED; urgency=low
   * Rename nut-server.lintian-overrides to nut-client.lintian-overrides and
     adjust overrides now that ups-monitor is shipped in nut-client package
     (Closes: #677947)
+  * Add debian/patches/0001-fix-upsmon-regression.patch: Fix upsmon/upssched
+    regression (Taken from upstream) (Closes: #679513)
 
- -- Laurent Bigonville <bigon@debian.org>  Thu, 09 Aug 2012 11:20:06 +0200
+ -- Laurent Bigonville <bigon@debian.org>  Thu, 09 Aug 2012 11:36:41 +0200
 
 nut (2.6.4-1) unstable; urgency=high
 
diff --git a/debian/patches/0001-fix-upsmon-regression.patch b/debian/patches/0001-fix-upsmon-regression.patch
new file mode 100644
index 0000000..aa8c13e
--- /dev/null
+++ b/debian/patches/0001-fix-upsmon-regression.patch
@@ -0,0 +1,15 @@
+Description: Fix upsmon/upssched regression
+Origin: upstream, http://trac.networkupstools.org/projects/nut/changeset/3670
+Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=679513
+
+Index: /trunk/clients/upssched.c
+===================================================================
+--- a/clients/upssched.c	(revision 3555)
++++ b/clients/upssched.c	(revision 3670)
+@@ -695,5 +695,5 @@
+ 			pconf_encode(arg2, enc, sizeof(enc)));
+ 
+-	snprintfcat(enc, sizeof(enc), "%s\n", buf);
++	snprintf(enc, sizeof(enc), "%s\n", buf);
+ 
+ 	/* see if the parent needs to be started (and maybe start it) */
diff --git a/debian/patches/series b/debian/patches/series
index 2024d93..f80396c 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1 +1,2 @@
+0001-fix-upsmon-regression.patch
 0002-nut-monitor-paths.patch