diff --git a/res/res_pjsip_endpoint_identifier_ip.c b/res/res_pjsip_endpoint_identifier_ip.c
index 555d653317..24687863e8 100644
--- a/res/res_pjsip_endpoint_identifier_ip.c
+++ b/res/res_pjsip_endpoint_identifier_ip.c
@@ -766,6 +766,7 @@ static int unload_module(void)
 	ast_cli_unregister_multiple(cli_identify, ARRAY_LEN(cli_identify));
 	ast_sip_unregister_cli_formatter(cli_formatter);
 	ast_sip_unregister_endpoint_formatter(&endpoint_identify_formatter);
+	ast_sip_unregister_endpoint_identifier(&header_identifier);
 	ast_sip_unregister_endpoint_identifier(&ip_identifier);
 
 	return 0;