diff --git a/serverloop.c b/serverloop.c
index 5112de6..58e20df 100644
--- a/serverloop.c
+++ b/serverloop.c
@@ -144,7 +144,9 @@
 	int save_errno = errno;
 	debug("Received SIGCHLD.");
 	child_terminated = 1;
+#ifndef _UNICOS
 	mysignal(SIGCHLD, sigchld_handler);
+#endif
 	notify_parent();
 	errno = save_errno;
 }