diff --git a/AppleWinExpress2008.vcproj b/AppleWinExpress2008.vcproj
index 02600ccf..c834422a 100644
--- a/AppleWinExpress2008.vcproj
+++ b/AppleWinExpress2008.vcproj
@@ -227,7 +227,7 @@
 			Filter=".cpp"
 			>
 			<File
-				RelativePath=".\source\Applewin.cpp"
+				RelativePath=".\source\AppleWin.cpp"
 				>
 			</File>
 			<File
diff --git a/AppleWinExpress2017.vcxproj b/AppleWinExpress2017.vcxproj
index c41c9e06..790883da 100644
--- a/AppleWinExpress2017.vcxproj
+++ b/AppleWinExpress2017.vcxproj
@@ -127,7 +127,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="source\6821.cpp" />
-    <ClCompile Include="source\Applewin.cpp" />
+    <ClCompile Include="source\AppleWin.cpp" />
     <ClCompile Include="source\AY8910.cpp" />
     <ClCompile Include="source\CardManager.cpp" />
     <ClCompile Include="source\Configuration\About.cpp" />
diff --git a/AppleWinExpress2017.vcxproj.filters b/AppleWinExpress2017.vcxproj.filters
index d5c2e1da..f639bf4c 100644
--- a/AppleWinExpress2017.vcxproj.filters
+++ b/AppleWinExpress2017.vcxproj.filters
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <ClCompile Include="source\Applewin.cpp">
+    <ClCompile Include="source\AppleWin.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
     <ClCompile Include="source\6821.cpp">
diff --git a/AppleWinExpress2019.vcxproj b/AppleWinExpress2019.vcxproj
index 7ec0c2b8..1b71176c 100644
--- a/AppleWinExpress2019.vcxproj
+++ b/AppleWinExpress2019.vcxproj
@@ -127,7 +127,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="source\6821.cpp" />
-    <ClCompile Include="source\Applewin.cpp" />
+    <ClCompile Include="source\AppleWin.cpp" />
     <ClCompile Include="source\AY8910.cpp" />
     <ClCompile Include="source\CardManager.cpp" />
     <ClCompile Include="source\Configuration\About.cpp" />
diff --git a/AppleWinExpress2019.vcxproj.filters b/AppleWinExpress2019.vcxproj.filters
index 5213f350..04f6de5f 100644
--- a/AppleWinExpress2019.vcxproj.filters
+++ b/AppleWinExpress2019.vcxproj.filters
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <ClCompile Include="source\Applewin.cpp">
+    <ClCompile Include="source\AppleWin.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
     <ClCompile Include="source\6821.cpp">
diff --git a/source/Applewin.cpp b/source/AppleWin.cpp
similarity index 100%
rename from source/Applewin.cpp
rename to source/AppleWin.cpp