diff --git a/src/mod/formats/mod_native_file/mod_native_file.c b/src/mod/formats/mod_native_file/mod_native_file.c
index 585109351e..2a40396a4f 100644
--- a/src/mod/formats/mod_native_file/mod_native_file.c
+++ b/src/mod/formats/mod_native_file/mod_native_file.c
@@ -97,6 +97,7 @@ static switch_status_t native_file_file_open(switch_file_handle_t *handle, const
 	handle->speed = 0;
 	handle->private_info = context;
 	handle->flags |= SWITCH_FILE_NATIVE;
+	handle->flags |= SWITCH_FILE_NOMUX;
 	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Opening File [%s] %dhz\n", path, handle->samplerate);
 
 	return SWITCH_STATUS_SUCCESS;