diff --git a/cryptest.vcxproj.filters b/cryptest.vcxproj.filters
index e17e0f88..cbcbebd8 100644
--- a/cryptest.vcxproj.filters
+++ b/cryptest.vcxproj.filters
@@ -433,7 +433,7 @@
     <ClCompile Include="validat8.cpp">
       <Filter>Source Code</Filter>
     </ClCompile>
-    <ClCompile Include="validat8.cpp">
+    <ClCompile Include="validat9.cpp">
       <Filter>Source Code</Filter>
     </ClCompile>
     <ClCompile Include="validat10.cpp">