diff --git a/src/saveload/gamelog_sl.cpp b/src/saveload/gamelog_sl.cpp
--- a/src/saveload/gamelog_sl.cpp
+++ b/src/saveload/gamelog_sl.cpp
@@ -168,5 +168,5 @@ static void Save_GLOG()
 
 
 extern const ChunkHandler _gamelog_chunk_handlers[] = {
-	{ 'GLOG', Save_GLOG, Load_GLOG, NULL, CH_RIFF | CH_LAST }
+	{ 'GLOG', Save_GLOG, Load_GLOG, NULL, NULL, CH_RIFF | CH_LAST }
 };