diff --git a/BizHawk.Emulation.Cores/BizHawk.Emulation.Cores.csproj b/BizHawk.Emulation.Cores/BizHawk.Emulation.Cores.csproj
index 4c09771baf..7e3ac45732 100644
--- a/BizHawk.Emulation.Cores/BizHawk.Emulation.Cores.csproj
+++ b/BizHawk.Emulation.Cores/BizHawk.Emulation.Cores.csproj
@@ -664,13 +664,13 @@
     <Compile Include="Consoles\Nintendo\SNES\SnesColors.cs" />
     <Compile Include="Consoles\Nintendo\SNES\SNESGraphicsDecoder.cs" />
     <Compile Include="Consoles\PC Engine\ADPCM.cs" />
-    <Compile Include="Consoles\PC Engine\ArcadeCard.cs" />
-    <Compile Include="Consoles\PC Engine\CDLMapping.cs" />
     <Compile Include="Consoles\PC Engine\MemoryMap.TurboCD.cs" />
     <Compile Include="Consoles\PC Engine\MemoryMap.Populous.cs" />
+    <Compile Include="Consoles\PC Engine\PCEngine.ArcadeCard.cs" />
+    <Compile Include="Consoles\PC Engine\PCEngine.CDLMapping.cs" />
     <Compile Include="Consoles\PC Engine\PCEngine.Input.cs" />
+    <Compile Include="Consoles\PC Engine\PCEngine.TurboCD.cs" />
     <Compile Include="Consoles\PC Engine\ScsiCDBus.cs" />
-    <Compile Include="Consoles\PC Engine\TurboCD.cs" />
     <Compile Include="Consoles\Sega\Genesis\Cart\EEPROM.cs" />
     <Compile Include="Consoles\Sega\Genesis\Cart\RomHeader.cs" />
     <Compile Include="Consoles\Sega\Genesis\Cart\SaveRAM.cs" />
diff --git a/BizHawk.Emulation.Cores/Consoles/PC Engine/ArcadeCard.cs b/BizHawk.Emulation.Cores/Consoles/PC Engine/PCEngine.ArcadeCard.cs
similarity index 100%
rename from BizHawk.Emulation.Cores/Consoles/PC Engine/ArcadeCard.cs
rename to BizHawk.Emulation.Cores/Consoles/PC Engine/PCEngine.ArcadeCard.cs
diff --git a/BizHawk.Emulation.Cores/Consoles/PC Engine/CDLMapping.cs b/BizHawk.Emulation.Cores/Consoles/PC Engine/PCEngine.CDLMapping.cs
similarity index 100%
rename from BizHawk.Emulation.Cores/Consoles/PC Engine/CDLMapping.cs
rename to BizHawk.Emulation.Cores/Consoles/PC Engine/PCEngine.CDLMapping.cs
diff --git a/BizHawk.Emulation.Cores/Consoles/PC Engine/TurboCD.cs b/BizHawk.Emulation.Cores/Consoles/PC Engine/PCEngine.TurboCD.cs
similarity index 100%
rename from BizHawk.Emulation.Cores/Consoles/PC Engine/TurboCD.cs
rename to BizHawk.Emulation.Cores/Consoles/PC Engine/PCEngine.TurboCD.cs