diff --git a/libavfilter/af_dynaudnorm.c b/libavfilter/af_dynaudnorm.c
index 60d6c87b57..0b80b2ac99 100644
--- a/libavfilter/af_dynaudnorm.c
+++ b/libavfilter/af_dynaudnorm.c
@@ -191,7 +191,7 @@ static int cqueue_enqueue(cqueue *q, double element)
 {
     int i;
 
-    av_assert2(q->nb_elements |= q->size);
+    av_assert2(q->nb_elements != q->size);
 
     i = (q->first + q->nb_elements) % q->size;
     q->elements[i] = element;