diff --git a/PCbuild/pythoncore.vcproj b/PCbuild/pythoncore.vcproj
index 1d50da9fccd..2710d375381 100644
--- a/PCbuild/pythoncore.vcproj
+++ b/PCbuild/pythoncore.vcproj
@@ -1374,18 +1374,6 @@
 					PreprocessorDefinitions="_DEBUG;USE_DL_EXPORT;WIN32;_WINDOWS;$(NoInherit)"/>
 			</FileConfiguration>
 		</File>
-		<File
-			RelativePath="..\Modules\cjkcodecs\mapdata_ja_JP.c">
-		</File>
-		<File
-			RelativePath="..\Modules\cjkcodecs\mapdata_ko_KR.c">
-		</File>
-		<File
-			RelativePath="..\Modules\cjkcodecs\mapdata_zh_CN.c">
-		</File>
-		<File
-			RelativePath="..\Modules\cjkcodecs\mapdata_zh_TW.c">
-		</File>
 		<File
 			RelativePath="..\Python\marshal.c">
 			<FileConfiguration