diff --git a/pacemaker-Wno-format-signedness.patch b/pacemaker-Wno-format-signedness.patch
new file mode 100644
index 0000000..bd2f894
--- /dev/null
+++ b/pacemaker-Wno-format-signedness.patch
@@ -0,0 +1,13 @@
+Index: pacemaker-1.1.12.git20150129.3021d73/configure.ac
+===================================================================
+--- pacemaker-1.1.12.git20150129.3021d73.orig/configure.ac	2015-02-24 13:22:11.748602751 +0100
++++ pacemaker-1.1.12.git20150129.3021d73/configure.ac	2015-02-24 13:22:29.684800783 +0100
+@@ -1708,7 +1708,7 @@ else
+ 		-Wdeclaration-after-statement
+ 		-Wendif-labels
+ 		-Wfloat-equal
+-		-Wformat=2
++		-Wformat=2 -Wno-format-signedness
+ 		-Wformat-security
+ 		-Wformat-nonliteral
+ 		-Wmissing-prototypes
diff --git a/pacemaker.changes b/pacemaker.changes
index b6f79ae..e5596da 100644
--- a/pacemaker.changes
+++ b/pacemaker.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Feb 24 12:26:27 UTC 2015 - rguenther@suse.com
+
+- Add pacemaker-Wno-format-signedness.patch to disable
+  -Wformat-signedness added by GCC 5 and enabled by -Wformat=2
+
 -------------------------------------------------------------------
 Fri Jan 30 10:37:57 UTC 2015 - ygao@suse.com
 
diff --git a/pacemaker.spec b/pacemaker.spec
index b71affb..489adf9 100644
--- a/pacemaker.spec
+++ b/pacemaker.spec
@@ -115,6 +115,7 @@ Patch4:         pacemaker-colocated-utilization.patch
 Patch5:         pacemaker-cibsecret-tool-temp-disabled.patch
 Patch6:         pacemaker-nagios-plugin-dir.patch
 Patch7:         bug-812269_pacemaker-fencing-device-register-messages.patch
+Patch8:         pacemaker-Wno-format-signedness.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 Provides:       pacemaker-ticket-support = 2.0
 Conflicts:      heartbeat < 3.0
@@ -396,6 +397,7 @@ manager for Corosync, CMAN and/or Linux-HA.
 %patch5 -p1
 %patch6 -p1
 %patch7 -p1
+%patch8 -p1
 
 # Force the local time
 #