diff --git a/test/vs2017/etl.vcxproj b/test/vs2017/etl.vcxproj
index d38c27c9..da41a433 100644
--- a/test/vs2017/etl.vcxproj
+++ b/test/vs2017/etl.vcxproj
@@ -382,10 +382,6 @@
     <ClCompile Include="..\test_random.cpp">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
     </ClCompile>
-    <ClCompile Include="..\test_reference_flat_map.cpp" />
-    <ClCompile Include="..\test_reference_flat_multimap.cpp" />
-    <ClCompile Include="..\test_reference_flat_multiset.cpp" />
-    <ClCompile Include="..\test_reference_flat_set.cpp" />
     <ClCompile Include="..\test_set.cpp">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
     </ClCompile>
diff --git a/test/vs2017/etl.vcxproj.filters b/test/vs2017/etl.vcxproj.filters
index 6be3e083..71c6c5b8 100644
--- a/test/vs2017/etl.vcxproj.filters
+++ b/test/vs2017/etl.vcxproj.filters
@@ -698,18 +698,6 @@
     <ClCompile Include="..\test_vector_non_trivial.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\test_reference_flat_map.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\test_reference_flat_multimap.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\test_reference_flat_multiset.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\test_reference_flat_set.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\unittest-cpp\UnitTest++\AssertException.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>