diff --git a/amxmodx/AMBuilder b/amxmodx/AMBuilder
index aa5f4127..6f1bd3b0 100644
--- a/amxmodx/AMBuilder
+++ b/amxmodx/AMBuilder
@@ -93,6 +93,7 @@ binary.sources = [
   'cvars.cpp',
   '../public/memtools/CDetour/detours.cpp',
   '../public/memtools/CDetour/asm/asm.c',
+  'CLibrarySys.cpp',
 ]
 
 if builder.target_platform == 'windows':
diff --git a/amxmodx/msvc12/amxmodx_mm.vcxproj b/amxmodx/msvc12/amxmodx_mm.vcxproj
index 3378a72a..4cdb7d2d 100644
--- a/amxmodx/msvc12/amxmodx_mm.vcxproj
+++ b/amxmodx/msvc12/amxmodx_mm.vcxproj
@@ -256,6 +256,7 @@
     <ClCompile Include="..\CFlagManager.cpp" />
     <ClCompile Include="..\CForward.cpp" />
     <ClCompile Include="..\CLang.cpp" />
+    <ClCompile Include="..\CLibrarySys.cpp" />
     <ClCompile Include="..\CLogEvent.cpp" />
     <ClCompile Include="..\CMenu.cpp" />
     <ClCompile Include="..\CMisc.cpp" />
@@ -334,9 +335,11 @@
     <ClInclude Include="..\CDataPack.h" />
     <ClInclude Include="..\CEvent.h" />
     <ClInclude Include="..\CFile.h" />
+    <ClInclude Include="..\CFileSystem.h" />
     <ClInclude Include="..\CFlagManager.h" />
     <ClInclude Include="..\CForward.h" />
     <ClInclude Include="..\CLang.h" />
+    <ClInclude Include="..\CLibrarySys.h" />
     <ClInclude Include="..\CList.h" />
     <ClInclude Include="..\CLogEvent.h" />
     <ClInclude Include="..\CMenu.h" />
diff --git a/amxmodx/msvc12/amxmodx_mm.vcxproj.filters b/amxmodx/msvc12/amxmodx_mm.vcxproj.filters
index 7c34bc41..7270a8b4 100644
--- a/amxmodx/msvc12/amxmodx_mm.vcxproj.filters
+++ b/amxmodx/msvc12/amxmodx_mm.vcxproj.filters
@@ -277,6 +277,9 @@
       <Filter>Third Party\Hashing\hashers</Filter>
     </ClCompile>
     <ClCompile Include="..\CPlugin.cpp">
+    	<Filter>Source Files</Filter>
+	</ClCompile>
+    <ClCompile Include="..\CLibrarySys.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
@@ -475,6 +478,12 @@
     </ClInclude>
     <ClInclude Include="..\..\third_party\hashing\hashers\sha256.h">
       <Filter>Third Party\Hashing\hashers</Filter>
+	</ClInclude>
+    <ClInclude Include="..\CFileSystem.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\CLibrarySys.h">
+      <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>
   <ItemGroup>