diff --git a/src/modules/media_file/source/avi_file.cc b/src/modules/media_file/source/avi_file.cc
index 862922838b..3b6d778fc8 100644
--- a/src/modules/media_file/source/avi_file.cc
+++ b/src/modules/media_file/source/avi_file.cc
@@ -1651,7 +1651,9 @@ WebRtc_Word32 AviFile::ReadAVIAudioStreamHeader(WebRtc_Word32 endpos)
     _bytesRead += GetLE32(_audioFormatHeader.nAvgBytesPerSec);
     _bytesRead += GetLE16(_audioFormatHeader.nBlockAlign);
     _bytesRead += GetLE16(_audioFormatHeader.wBitsPerSample);
-    _bytesRead += GetLE16(_audioFormatHeader.cbSize);
+    if (chunksize > 0x10) {
+        _bytesRead += GetLE16(_audioFormatHeader.cbSize);
+    }
 
     const WebRtc_UWord32 diffRead = chunksize - (_bytesRead - startRead);
     if (diffRead > 0)