diff --git a/windows/nDPI.vcxproj b/windows/nDPI.vcxproj
index cd8e7bcaf325..adc574ec1654 100644
--- a/windows/nDPI.vcxproj
+++ b/windows/nDPI.vcxproj
@@ -365,7 +365,7 @@
     <ClCompile Include="..\src\lib\protocols\gearman.c" />
     <ClCompile Include="..\src\lib\protocols\tencent_games.c" />
     <ClCompile Include="..\src\lib\protocols\gaijin_entertainment.c" />
-    <ClCompile Include="..\src\lib\protocols\с1222.c" />
+    <ClCompile Include="..\src\lib\protocols\c1222.c" />
     <ClCompile Include="..\src\lib\third_party\src\gcrypt_light.c" />
     <ClCompile Include="..\src\lib\third_party\src\libcache.c" />
     <ClCompile Include="..\src\lib\third_party\src\libinjection_html5.c" />