diff --git a/event.c b/event.c
index 9c91b20..935a331 100644
--- a/event.c
+++ b/event.c
@@ -199,7 +199,7 @@ void event_remove_timeout(struct event_timeout *entry)
 	entry->flags |= EVENT_DELETE;
 }
 
-void event_loop_break(void *dummy)
+void event_loop_break(void)
 {
 	leave_loop = 1;
 }
diff --git a/event.h b/event.h
index 28150a8..0413b86 100644
--- a/event.h
+++ b/event.h
@@ -37,7 +37,7 @@ struct event_timeout * event_add_timeout(
 
 void event_remove_timeout(struct event_timeout *entry);
 
-void event_loop_break(void *dummy);
+void event_loop_break(void);
 int event_loop(void);
 
 #endif /* _EVENT_H_ */
diff --git a/sammler.c b/sammler.c
index dcb1434..b51b2bb 100644
--- a/sammler.c
+++ b/sammler.c
@@ -113,7 +113,7 @@ int main(int argc, char *argv[])
 	}
 
 	signal_init();
-	signal_set_callback(SIGUSR1, event_loop_break, NULL);
+	signal_set_callback(SIGHUP, event_loop_break);
 
 	log_print(LOG_EVERYTIME, "sammler started (pid:%d)", getpid());
 
diff --git a/signals.c b/signals.c
index 9d99acf..f640a3b 100644
--- a/signals.c
+++ b/signals.c
@@ -32,8 +32,7 @@ struct signal_entry {
 	int signum;
 	int deleted;
 
-	void (*callback)(void *privdata);
-	void *privdata;
+	void (*callback)(void);
 };
 
 static LIST_HEAD(callback_list);
@@ -77,10 +76,8 @@ int signal_remove_callback(int signum, int type)
 	return 0;
 }
 
-int signal_set_callback(int signum, void (*callback)(void *privdata), void *privdata)
+int signal_set_callback(int signum, void (*callback)(void))
 {
-	signal_remove_callback(signum, SIG_DEFAULT);
-
 	struct signal_entry *entry = malloc(sizeof(struct signal_entry));
 	if (entry == NULL) {
 		log_print(LOG_WARN, "signal_add_callback(): out of memory");
@@ -90,7 +87,6 @@ int signal_set_callback(int signum, void (*callback)(void *privdata), void *priv
 	entry->signum = signum;
 	entry->deleted = 0;
 	entry->callback = callback;
-	entry->privdata = privdata;
 	list_add_tail(&entry->list, &callback_list);
 
 	struct sigaction sig_action = {
@@ -125,7 +121,7 @@ static int sig_event(int fd, void *privdata)
 		}
 
 		if (search->signum == signum)
-			search->callback(search->privdata);
+			search->callback();
 	}
 
 	return 0;
diff --git a/signals.h b/signals.h
index a6d777c..f2c8a06 100644
--- a/signals.h
+++ b/signals.h
@@ -5,7 +5,7 @@
 #define SIG_IGNORE	0x01
 
 int signal_remove_callback(int signum, int type);
-int signal_set_callback(int signum, void (*callback)(void *privdata), void *privdata);
+int signal_set_callback(int signum, void (*callback)(void));
 
 int signal_init(void);