diff --git a/libs/audio/source/engine.cpp b/libs/audio/source/engine.cpp
index 2f8a3262..cbb8eb2f 100644
--- a/libs/audio/source/engine.cpp
+++ b/libs/audio/source/engine.cpp
@@ -57,7 +57,7 @@ namespace psemek::audio
 
 			std::size_t size() const override
 			{
-				return chunk->alen;
+				return chunk->alen / 2;
 			}
 
 			~track_impl()