diff --git a/win32/libcoap.vcxproj b/win32/libcoap.vcxproj
index 54565151..fe728867 100644
--- a/win32/libcoap.vcxproj
+++ b/win32/libcoap.vcxproj
@@ -47,7 +47,6 @@
     <ClCompile Include="..\src\coap_tinydtls.c" />
     <ClCompile Include="..\src\debug.c" />
     <ClCompile Include="..\src\encode.c" />
-    <ClCompile Include="..\src\hashkey.c" />
     <ClCompile Include="..\src\mem.c" />
     <ClCompile Include="..\src\net.c" />
     <ClCompile Include="..\src\option.c" />
@@ -71,7 +70,6 @@
     <ClInclude Include="..\include\coap\coap_time.h" />
     <ClInclude Include="..\include\coap\debug.h" />
     <ClInclude Include="..\include\coap\encode.h" />
-    <ClInclude Include="..\include\coap\hashkey.h" />
     <ClInclude Include="..\include\coap\libcoap.h" />
     <ClInclude Include="..\include\coap\mem.h" />
     <ClInclude Include="..\include\coap\net.h" />
@@ -545,4 +543,4 @@ copy /Y ..\include\coap\coap.h.windows ..\include\coap\coap.h</Command>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/win32/libcoap.vcxproj.filters b/win32/libcoap.vcxproj.filters
index 0d492000..707dc286 100644
--- a/win32/libcoap.vcxproj.filters
+++ b/win32/libcoap.vcxproj.filters
@@ -36,9 +36,6 @@
     <ClCompile Include="..\src\encode.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\src\hashkey.c">
-      <Filter>Source Files</Filter>
-    </ClCompile>
     <ClCompile Include="..\src\mem.c">
       <Filter>Source Files</Filter>
     </ClCompile>
@@ -104,9 +101,6 @@
     <ClInclude Include="..\include\coap\encode.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="..\include\coap\hashkey.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
     <ClInclude Include="..\include\coap\libcoap.h">
       <Filter>Header Files</Filter>
     </ClInclude>
@@ -162,4 +156,4 @@
   <ItemGroup>
     <CustomBuild Include="..\libcoap-1.sym" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>