diff --git a/libavcodec/celp_filters.h b/libavcodec/celp_filters.h
index f46dcd2d2a..43df0ae52f 100644
--- a/libavcodec/celp_filters.h
+++ b/libavcodec/celp_filters.h
@@ -79,8 +79,6 @@ int ff_celp_lp_synthesis_filter(
  * @param buffer_length amount of data to process
  * @param filter_length filter length (10 for 10th order LP filter)
  *
- * @return 1 if overflow occurred, 0 - otherwise
- *
  * @note Output buffer must contain 10 samples of past
  *       speech data before pointer.
  *