diff --git a/projects/openttd_vs100.vcxproj b/projects/openttd_vs100.vcxproj
index 228c5027c4..7584a8c2b4 100644
--- a/projects/openttd_vs100.vcxproj
+++ b/projects/openttd_vs100.vcxproj
@@ -966,6 +966,7 @@
     <ClInclude Include="..\src\blitter\8bpp_optimized.hpp" />
     <ClCompile Include="..\src\blitter\8bpp_simple.cpp" />
     <ClInclude Include="..\src\blitter\8bpp_simple.hpp" />
+    <ClCompile Include="..\src\blitter\base.cpp" />
     <ClInclude Include="..\src\blitter\base.hpp" />
     <ClInclude Include="..\src\blitter\factory.hpp" />
     <ClCompile Include="..\src\blitter\null.cpp" />
diff --git a/projects/openttd_vs100.vcxproj.filters b/projects/openttd_vs100.vcxproj.filters
index e7c9a305da..0020eb1892 100644
--- a/projects/openttd_vs100.vcxproj.filters
+++ b/projects/openttd_vs100.vcxproj.filters
@@ -2118,6 +2118,9 @@
     <ClInclude Include="..\src\blitter\8bpp_simple.hpp">
       <Filter>Blitters</Filter>
     </ClInclude>
+    <ClCompile Include="..\src\blitter\base.cpp">
+      <Filter>Blitters</Filter>
+    </ClCompile>
     <ClInclude Include="..\src\blitter\base.hpp">
       <Filter>Blitters</Filter>
     </ClInclude>
diff --git a/projects/openttd_vs80.vcproj b/projects/openttd_vs80.vcproj
index 49ffc4d466..fb84d3e506 100644
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -3194,6 +3194,10 @@
 				RelativePath=".\..\src\blitter\8bpp_simple.hpp"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\blitter\base.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\blitter\base.hpp"
 				>
diff --git a/projects/openttd_vs90.vcproj b/projects/openttd_vs90.vcproj
index 3c47608073..0ee69329c7 100644
--- a/projects/openttd_vs90.vcproj
+++ b/projects/openttd_vs90.vcproj
@@ -3191,6 +3191,10 @@
 				RelativePath=".\..\src\blitter\8bpp_simple.hpp"
 				>
 			</File>
+			<File
+				RelativePath=".\..\src\blitter\base.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\..\src\blitter\base.hpp"
 				>