diff --git a/include/opus.h b/include/opus.h
index c242fec0e76a9a29a40c91ffad700cf450acca80..df1571afd5d5138e26d96179fd5edbf556ae511f 100644
--- a/include/opus.h
+++ b/include/opus.h
@@ -447,7 +447,7 @@ OPUS_EXPORT int opus_decoder_init(
   * @param [out] pcm <tt>opus_int16*</tt>: Output signal (interleaved if 2 channels). length
   *  is frame_size*channels*sizeof(opus_int16)
   * @param [in] frame_size Number of samples per channel of available space in \a pcm.
-  *  If this is less than the maximum frame size (120 ms), this function will
+  *  If this is less than the maximum packet duration (120ms; 5760 for 48kHz), this function will
   *  not be capable of decoding some packets.
   * @param [in] decode_fec <tt>int</tt>: Flag (0 or 1) to request that any in-band forward error correction data be
   *  decoded. If no such data is available, the frame is decoded as if it were lost.
@@ -468,8 +468,9 @@ OPUS_EXPORT OPUS_WARN_UNUSED_RESULT int opus_decode(
   * @param [in] len <tt>opus_int32</tt>: Number of bytes in payload
   * @param [out] pcm <tt>float*</tt>: Output signal (interleaved if 2 channels). length
   *  is frame_size*channels*sizeof(float)
-  * @param [in] frame_size Number of samples per channel of available space in *pcm,
-  *  if less than the maximum frame size (120ms) some frames can not be decoded
+  * @param [in] frame_size Number of samples per channel of available space in \a pcm.
+  *  If this is less than the maximum packet duration (120ms; 5760 for 48kHz), this function will
+  *  not be capable of decoding some packets.
   * @param [in] decode_fec <tt>int</tt>: Flag (0 or 1) to request that any in-band forward error correction data be
   *  decoded. If no such data is available the frame is decoded as if it were lost.
   * @returns Number of decoded samples or @ref opus_errorcodes
diff --git a/include/opus_multistream.h b/include/opus_multistream.h
index f476efa6a80c00c25dff458dd46632e80509a80e..9ae1711e8268408c50646b35024d6e97d6b3a691 100644
--- a/include/opus_multistream.h
+++ b/include/opus_multistream.h
@@ -535,8 +535,8 @@ OPUS_EXPORT int opus_multistream_decoder_init(
   *                                       samples.
   * @param frame_size <tt>int</tt>: The number of samples per channel of
   *                                 available space in \a pcm.
-  *                                 If this is less than the maximum frame size
-  *                                 (120 ms), this function will not be capable
+  *                                 If this is less than the maximum packet duration
+  *                                 (120 ms; 5760 for 48kHz), this function will not be capable
   *                                 of decoding some packets.
   * @param decode_fec <tt>int</tt>: Flag (0 or 1) to request that any in-band
   *                                 forward error correction data be decoded.
@@ -568,8 +568,8 @@ OPUS_EXPORT OPUS_WARN_UNUSED_RESULT int opus_multistream_decode(
   *                                       samples.
   * @param frame_size <tt>int</tt>: The number of samples per channel of
   *                                 available space in \a pcm.
-  *                                 If this is less than the maximum frame size
-  *                                 (120 ms), this function will not be capable
+  *                                 If this is less than the maximum packet duration
+  *                                 (120 ms; 5760 for 48kHz), this function will not be capable
   *                                 of decoding some packets.
   * @param decode_fec <tt>int</tt>: Flag (0 or 1) to request that any in-band
   *                                 forward error correction data be decoded.