1 files changed, 1 insertions, 2 deletions
diff --git a/src/modules/module-jack-source.c b/src/modules/module-jack-source.c
index 880bb603..03f9d15c 100644
--- a/src/modules/module-jack-source.c
+++ b/src/modules/module-jack-source.c
@@ -301,8 +301,7 @@ int pa__init(pa_module*m) {
         goto fail;
     }
 
-    pa_assert_se(pa_channel_map_init_auto(&map, channels, PA_CHANNEL_MAP_AUX));
-    pa_channel_map_init_auto(&map, channels, PA_CHANNEL_MAP_ALSA);
+    pa_channel_map_init_extend(&map, channels, PA_CHANNEL_MAP_ALSA);
     if (pa_modargs_get_channel_map(ma, NULL, &map) < 0 || map.channels != channels) {
         pa_log("failed to parse channel_map= argument.");
         goto fail;