diff --git a/filters/f_async_queue.c b/filters/f_async_queue.c
index 8aa2041dd9..84f38e9460 100644
--- a/filters/f_async_queue.c
+++ b/filters/f_async_queue.c
@@ -88,6 +88,8 @@ static int64_t frame_get_samples(struct async_queue *q, struct mp_frame frame)
         struct mp_aframe *aframe = frame.data;
         res = mp_aframe_get_size(aframe);
     }
+    if (mp_frame_is_signaling(frame))
+        return 0;
     return res;
 }
 
diff --git a/filters/f_async_queue.h b/filters/f_async_queue.h
index dcc5ba57eb..50678faec1 100644
--- a/filters/f_async_queue.h
+++ b/filters/f_async_queue.h
@@ -65,7 +65,8 @@ struct mp_filter *mp_async_queue_create_filter(struct mp_filter *parent,
 
 enum mp_async_queue_sample_unit {
     AQUEUE_UNIT_FRAME = 0,  // a frame counts as 1 sample
-    AQUEUE_UNIT_SAMPLES,    // number of audio samples (1 for other media types)
+    AQUEUE_UNIT_SAMPLES,    // number of audio samples (1 for other media types,
+                            // 0 for signaling)
 };
 
 // Setting this struct to all-0 is equivalent to defaults.