diff --git a/patches/zrtp_changes.diff b/patches/zrtp_changes.diff
new file mode 100644
index 0000000000..6b7ad12e31
--- /dev/null
+++ b/patches/zrtp_changes.diff
@@ -0,0 +1,22 @@
+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();