diff --git a/projects/openttd_vs100.vcxproj b/projects/openttd_vs100.vcxproj
--- a/projects/openttd_vs100.vcxproj
+++ b/projects/openttd_vs100.vcxproj
@@ -470,6 +470,7 @@
     <ClInclude Include="..\src\newgrf.h" />
     <ClInclude Include="..\src\newgrf_airport.h" />
     <ClInclude Include="..\src\newgrf_airporttiles.h" />
+    <ClInclude Include="..\src\newgrf_animation_base.h" />
     <ClInclude Include="..\src\newgrf_animation_type.h" />
     <ClInclude Include="..\src\newgrf_callbacks.h" />
     <ClInclude Include="..\src\newgrf_canal.h" />