diff --git a/projects/strgen_vs100.vcxproj b/projects/strgen_vs100.vcxproj
index fe08161136..7a43b4debb 100644
--- a/projects/strgen_vs100.vcxproj
+++ b/projects/strgen_vs100.vcxproj
@@ -74,6 +74,7 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="..\src\core\alloc_func.cpp" />
+    <ClCompile Include="..\src\strgen\strgen_base.cpp" />
     <ClCompile Include="..\src\strgen\strgen.cpp" />
     <ClCompile Include="..\src\string.cpp" />
     <ClCompile Include="..\src\misc\getoptdata.cpp" />
diff --git a/projects/strgen_vs100.vcxproj.filters b/projects/strgen_vs100.vcxproj.filters
index 44875572a8..58864ee691 100644
--- a/projects/strgen_vs100.vcxproj.filters
+++ b/projects/strgen_vs100.vcxproj.filters
@@ -10,6 +10,9 @@
     <ClCompile Include="..\src\core\alloc_func.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\src\strgen\strgen_base.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\src\strgen\strgen.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/projects/strgen_vs80.vcproj b/projects/strgen_vs80.vcproj
index 93a9bc427e..4450279303 100644
--- a/projects/strgen_vs80.vcproj
+++ b/projects/strgen_vs80.vcproj
@@ -117,6 +117,10 @@
 				RelativePath="..\src\core\alloc_func.cpp"
 				>
 			</File>
+			<File
+				RelativePath="..\src\strgen\strgen_base.cpp"
+				>
+			</File>
 			<File
 				RelativePath="..\src\strgen\strgen.cpp"
 				>
diff --git a/projects/strgen_vs90.vcproj b/projects/strgen_vs90.vcproj
index 39892cd10d..ca194e078f 100644
--- a/projects/strgen_vs90.vcproj
+++ b/projects/strgen_vs90.vcproj
@@ -117,6 +117,10 @@
 				RelativePath="..\src\core\alloc_func.cpp"
 				>
 			</File>
+			<File
+				RelativePath="..\src\strgen\strgen_base.cpp"
+				>
+			</File>
 			<File
 				RelativePath="..\src\strgen\strgen.cpp"
 				>