Index: plugins/clock/clock.c
===================================================================
--- plugins/clock/clock.c	(revision 22517)
+++ plugins/clock/clock.c	(working copy)
@@ -321,6 +321,8 @@
     clock->clock = xfce_clock_new ();
     gtk_widget_show (clock->clock);
     gtk_container_add (GTK_CONTAINER (clock->frame), clock->clock);
+    
+    xfce_clock_set_interval (XFCE_CLOCK (clock->clock), 1000);
 
     clock_read_rc_file (plugin, clock);