Index: src/switch_rtp.c
===================================================================
--- src/switch_rtp.c	(revision 14727)
+++ src/switch_rtp.c	(working copy)
@@ -549,7 +549,7 @@
 	}
 }
 
-static void zrtp_logger(int level, const char *data, int len)
+static void zrtp_logger(int level, const char *data, int len, int offset)
 {
 	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s", data);
 }
@@ -598,7 +598,7 @@
 		zrtp_config.cb.misc_cb.on_send_packet = zrtp_send_rtp_callback;
 		zrtp_config.cb.event_cb.on_zrtp_security_event = zrtp_event_callback;
 		
-		zrtp_log_set_log_engine(zrtp_logger);
+		zrtp_log_set_log_engine((zrtp_log_engine*)zrtp_logger);
 		zrtp_log_set_level(4);
 		if (zrtp_status_ok != zrtp_init(&zrtp_config, &zrtp_global)) {
 			abort();