diff -Naur gksu-polkit-0.0.2/libgksu/gksu-process.c gksu-polkit-0.0.2.new/libgksu/gksu-process.c
--- gksu-polkit-0.0.2/libgksu/gksu-process.c	2010-01-30 18:38:25.000000000 +0200
+++ gksu-polkit-0.0.2.new/libgksu/gksu-process.c	2013-12-01 03:45:15.567392098 +0200
@@ -236,7 +236,7 @@
   priv->dbus = dbus_g_bus_get(DBUS_BUS_SYSTEM, &error);
   if(error)
     {
-      g_error(error->message);
+      g_error("%s", error->message);
       exit(1);
     }
 
diff -Naur gksu-polkit-0.0.2/mechanism/gksu-controller.c gksu-polkit-0.0.2.new/mechanism/gksu-controller.c
--- gksu-polkit-0.0.2/mechanism/gksu-controller.c	2010-01-30 18:38:25.000000000 +0200
+++ gksu-polkit-0.0.2.new/mechanism/gksu-controller.c	2013-12-01 03:47:17.333840126 +0200
@@ -639,7 +639,7 @@
   if(retval == -1)
     {
       g_set_error(error, GKSU_ERROR, GKSU_ERROR_KILL,
-                  strerror(errno));
+                  "%s", strerror(errno));
       return FALSE;
     }
   return TRUE;
diff -Naur gksu-polkit-0.0.2/mechanism/gksu-server.c gksu-polkit-0.0.2.new/mechanism/gksu-server.c
--- gksu-polkit-0.0.2/mechanism/gksu-server.c	2010-01-30 18:38:25.000000000 +0200
+++ gksu-polkit-0.0.2.new/mechanism/gksu-server.c	2013-12-01 03:31:28.711864175 +0200
@@ -225,7 +225,7 @@
   priv->dbus = dbus_g_bus_get(DBUS_BUS_SYSTEM, &error);
   if(error)
     {
-      g_error(error->message);
+      g_error("%s", error->message);
       exit(1);
     }
   connection = dbus_g_connection_get_connection(priv->dbus);