Index: src/saveload/engine_sl.cpp
===================================================================
--- src/saveload/engine_sl.cpp  (revision 26810)
+++ src/saveload/engine_sl.cpp  (working copy)
@@ -13,7 +13,7 @@
 #include "saveload_internal.h"
 #include "../engine_base.h"
 #include "../string_func.h"
-#include <map>
+#include <vector>
 
 #include "../safeguards.h"
 
@@ -48,11 +48,21 @@
        SLE_END()
 };
 
-static std::map<EngineID, Engine> _temp_engine;
+static std::vector<Engine> _temp_engine;
 
 Engine *GetTempDataEngine(EngineID index)
 {
-       return &_temp_engine[index];
+       if (index < _temp_engine.size()) {
+               return &_temp_engine[index];
+       } else if (index == _temp_engine.size()) {
+               uint8 zero[sizeof(Engine)];
+               memset(zero, 0, sizeof(zero));
+               Engine *engine = new(zero)Engine();
+               _temp_engine.push_back(*engine);
+               return &_temp_engine[index];
+       } else {
+               NOT_REACHED();
+       }
 }
 
 static void Save_ENGN()