diff --git a/build/kvazaar_tests/kvazaar_tests.vcxproj b/build/kvazaar_tests/kvazaar_tests.vcxproj
index cce4139a..9766bc1e 100644
--- a/build/kvazaar_tests/kvazaar_tests.vcxproj
+++ b/build/kvazaar_tests/kvazaar_tests.vcxproj
@@ -97,6 +97,7 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\..\tests\coeff_sum_tests.c" />
     <ClCompile Include="..\..\tests\dct_tests.c" />
     <ClCompile Include="..\..\tests\test_strategies.c" />
     <ClCompile Include="..\..\tests\intra_sad_tests.c" />
diff --git a/build/kvazaar_tests/kvazaar_tests.vcxproj.filters b/build/kvazaar_tests/kvazaar_tests.vcxproj.filters
index a5e8d44c..a7b14138 100644
--- a/build/kvazaar_tests/kvazaar_tests.vcxproj.filters
+++ b/build/kvazaar_tests/kvazaar_tests.vcxproj.filters
@@ -39,6 +39,9 @@
     <ClCompile Include="..\..\tests\dct_tests.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\tests\coeff_sum_tests.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\tests\sad_tests.h">