diff --git a/libavcodec/bitstream.h b/libavcodec/bitstream.h
index 6a12a64cd1..1a422d2b0b 100644
--- a/libavcodec/bitstream.h
+++ b/libavcodec/bitstream.h
@@ -128,7 +128,9 @@ static inline int put_bits_count(PutBitContext *s)
 #endif
 }
 
-/* pad the end of the output stream with zeros */
+/**
+ * Pads the end of the output stream with zeros.
+ */
 static inline void flush_put_bits(PutBitContext *s)
 {
 #ifdef ALT_BITSTREAM_WRITER