diff --git a/engines/scumm/smush/smush_player.cpp b/engines/scumm/smush/smush_player.cpp
index f3a51bcd390..593a4e18581 100644
--- a/engines/scumm/smush/smush_player.cpp
+++ b/engines/scumm/smush/smush_player.cpp
@@ -1779,7 +1779,7 @@ void SmushPlayer::processDispatches(int16 feedSize) {
 	}
 }
 
-bool SmushPlayer::processAudioCodes(int idx, int &tmpFeedSize, int &mixVolume) {
+bool SmushPlayer::processAudioCodes(int idx, int32 &tmpFeedSize, int &mixVolume) {
 	uint8 *code, *buf, subcode, value;
 	int chunk;