diff --git a/src/serializer.cpp b/src/serializer.cpp
index 7eea15f61..28962c871 100644
--- a/src/serializer.cpp
+++ b/src/serializer.cpp
@@ -68,7 +68,6 @@
 #include "g_levellocals.h"
 #include "utf8.h"
 
-char nulspace[1024 * 1024 * 4];
 bool save_full = false;	// for testing. Should be removed afterward.
 
 //==========================================================================
@@ -305,15 +304,12 @@ struct FReader
 	rapidjson::Document mDoc;
 	TArray<DObject *> mDObjects;
 	rapidjson::Value *mKeyValue = nullptr;
-	int mPlayers[MAXPLAYERS];
 	bool mObjectsRead = false;
 
 	FReader(const char *buffer, size_t length)
 	{
-		rapidjson::Document doc;
 		mDoc.Parse(buffer, length);
 		mObjects.Push(FJSONObject(&mDoc));
-		memset(mPlayers, -1, sizeof(mPlayers));
 	}
 
 	rapidjson::Value *FindKey(const char *key)