diff --git a/audio/out/ao_coreaudio.c b/audio/out/ao_coreaudio.c
index 706187c31b..741bc1c0ab 100644
--- a/audio/out/ao_coreaudio.c
+++ b/audio/out/ao_coreaudio.c
@@ -415,11 +415,11 @@ bool ca_layout_to_mp_chmap(struct ao *ao, AudioChannelLayout *layout,
                            struct mp_chmap *chmap)
 {
     void *talloc_ctx = talloc_new(NULL);
-    AudioChannelLayout *l = ca_layout_to_custom_layout(ao, talloc_ctx, layout);
 
     MP_DBG(ao, "input channel layout:\n");
     ca_log_layout(ao, MSGL_DEBUG, layout);
 
+    AudioChannelLayout *l = ca_layout_to_custom_layout(ao, talloc_ctx, layout);
     if (!l)
         goto coreaudio_error;