diff --git a/src/kits/interface/PicturePlayer.cpp b/src/kits/interface/PicturePlayer.cpp
index ab96b0ad29..4f0906751e 100644
--- a/src/kits/interface/PicturePlayer.cpp
+++ b/src/kits/interface/PicturePlayer.cpp
@@ -173,9 +173,9 @@ PicturePlayer::Play(void **callBackTable, int32 tableEntries, void *userData)
 
 	while ((pos + 6) <= fSize) {
 		int16 op = *reinterpret_cast<const int16 *>(data);
-		size_t size = *reinterpret_cast<const size_t *>(data + sizeof(int16));
-		pos += sizeof(int16) + sizeof(size_t);
-		data += sizeof(int16) + sizeof(size_t);
+		int32 size = *reinterpret_cast<const int32 *>(data + 2);
+		pos += 6;
+		data += 6;
 
 		if (pos + size > fSize)
 			debugger("PicturePlayer::Play: buffer overrun\n");