diff --git a/servers/slapd/main.c b/servers/slapd/main.c
index db8403c843..2e2dc924d2 100644
--- a/servers/slapd/main.c
+++ b/servers/slapd/main.c
@@ -704,7 +704,9 @@ unhandled_option:;
 #endif
 	(void) SIGNAL( SIGINT, slap_sig_shutdown );
 	(void) SIGNAL( SIGTERM, slap_sig_shutdown );
+#ifdef SIGTRAP
 	(void) SIGNAL( SIGTRAP, slap_sig_shutdown );
+#endif
 #ifdef LDAP_SIGCHLD
 	(void) SIGNAL( LDAP_SIGCHLD, wait4child );
 #endif