diff --git a/maszyna.vcxproj.filters b/maszyna.vcxproj.filters
index 7652f761..5ac1908c 100644
--- a/maszyna.vcxproj.filters
+++ b/maszyna.vcxproj.filters
@@ -392,9 +392,6 @@
     <ClInclude Include="lightarray.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="Data.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
     <ClInclude Include="sn_utils.h">
       <Filter>Header Files</Filter>
     </ClInclude>
diff --git a/Data.h b/old/Data.h
similarity index 100%
rename from Data.h
rename to old/Data.h
diff --git a/renderer.cpp b/renderer.cpp
index 92c9e79d..aa703f86 100644
--- a/renderer.cpp
+++ b/renderer.cpp
@@ -15,7 +15,6 @@ http://mozilla.org/MPL/2.0/.
 #include "simulation.h"
 #include "world.h"
 #include "train.h"
-#include "data.h"
 #include "dynobj.h"
 #include "animmodel.h"
 #include "traction.h"