diff -urp prelude-correlator-0.9.0-beta3.orig/src/prelude-correlator.c prelude-correlator-0.9.0-beta3/src/prelude-correlator.c
--- prelude-correlator-0.9.0-beta3.orig/src/prelude-correlator.c	2008-12-06 10:02:53.000000000 -0500
+++ prelude-correlator-0.9.0-beta3/src/prelude-correlator.c	2008-12-06 10:03:40.000000000 -0500
@@ -25,6 +25,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <signal.h>
 
 #include <libprelude/prelude.h>
 #include <libprelude/prelude-log.h>