diff --git a/src/switch_rtp.c b/src/switch_rtp.c
index 942d106dd9..8be73813e5 100644
--- a/src/switch_rtp.c
+++ b/src/switch_rtp.c
@@ -944,14 +944,16 @@ SWITCH_DECLARE(void) switch_rtp_init(switch_memory_pool_t *pool)
 	switch_core_hash_init(&alloc_hash, pool);
 #ifdef ENABLE_ZRTP
 	if (zrtp_on) {
+		uint32_t cache_len;
 		zrtp_config_defaults(&zrtp_config);
 		strcpy(zrtp_config.client_id, "FreeSWITCH");
 		zrtp_config.is_mitm = 1;
 		zrtp_config.lic_mode = ZRTP_LICENSE_MODE_ACTIVE;
 		switch_snprintf(zrtp_cache_path, sizeof(zrtp_cache_path), "%s%szrtp.dat", SWITCH_GLOBAL_dirs.db_dir, SWITCH_PATH_SEPARATOR);
-		zrtp_zstrcpyc((zrtp_stringn_t*)zrtp_config.def_cache_path.buffer, zrtp_cache_path);
-		zrtp_config.def_cache_path.length = (uint16_t)strlen(zrtp_cache_path);
-		zrtp_config.def_cache_path.max_length = 255;
+		cache_len=(uint32_t)strlen(zrtp_cache_path);
+		ZSTR_SET_EMPTY(zrtp_config.def_cache_path);
+		zrtp_config.def_cache_path.length = cache_len > zrtp_config.def_cache_path.max_length ? zrtp_config.def_cache_path.max_length : (uint16_t)cache_len;
+		strncpy(zrtp_config.def_cache_path.buffer, zrtp_cache_path, zrtp_config.def_cache_path.max_length);
 		zrtp_config.cb.event_cb.on_zrtp_protocol_event = (void (*)(zrtp_stream_t*,zrtp_protocol_event_t))zrtp_event_callback;
 		zrtp_config.cb.misc_cb.on_send_packet = zrtp_send_rtp_callback;
 		zrtp_config.cb.event_cb.on_zrtp_security_event = (void (*)(zrtp_stream_t*,zrtp_security_event_t))zrtp_event_callback;