diff --git a/src/modules/module-pulse-tunnel.c b/src/modules/module-pulse-tunnel.c
index 1247b2ef2..7ad853fca 100644
--- a/src/modules/module-pulse-tunnel.c
+++ b/src/modules/module-pulse-tunnel.c
@@ -331,7 +331,8 @@ static int create_stream(struct impl *impl)
 			impl->mode == MODE_CAPTURE ? PW_DIRECTION_OUTPUT : PW_DIRECTION_INPUT,
 			PW_ID_ANY,
 			PW_STREAM_FLAG_AUTOCONNECT |
-			PW_STREAM_FLAG_MAP_BUFFERS,
+			PW_STREAM_FLAG_MAP_BUFFERS |
+			PW_STREAM_FLAG_RT_PROCESS,
 			params, n_params)) < 0)
 		return res;