diff --git a/srcpkgs/mate-session-manager/patches/setlocale-needs-locale.h.patch b/srcpkgs/mate-session-manager/patches/setlocale-needs-locale.h.patch
new file mode 100644
index 0000000000..1173c9d5de
--- /dev/null
+++ b/srcpkgs/mate-session-manager/patches/setlocale-needs-locale.h.patch
@@ -0,0 +1,10 @@
+--- tools/mate-session-inhibit.c.orig	2015-05-21 21:08:13.349790585 +0200
++++ tools/mate-session-inhibit.c	2015-05-21 21:08:22.765889625 +0200
+@@ -24,6 +24,7 @@
+ #include <unistd.h>
+ #include <stdlib.h>
+ #include <string.h>
++#include <locale.h>
+ 
+ #include <glib.h>
+ #include <glib/gi18n.h>
diff --git a/srcpkgs/mate-session-manager/template b/srcpkgs/mate-session-manager/template
index 150de61f1c..2d7ce076c5 100644
--- a/srcpkgs/mate-session-manager/template
+++ b/srcpkgs/mate-session-manager/template
@@ -1,7 +1,7 @@
 # Template file for 'mate-session-manager'
 pkgname=mate-session-manager
 version=1.10.0
-revision=3
+revision=4
 build_style=gnu-configure
 build_options="systemd"
 configure_args="--with-gtk=2.0 --disable-static