diff --git a/SW.Bitween.HttpTests/SW.Bitween.HttpTests.csproj b/SW.Bitween.HttpTests/SW.Bitween.HttpTests.csproj
index 0f4e4feb..4b21af6f 100644
--- a/SW.Bitween.HttpTests/SW.Bitween.HttpTests.csproj
+++ b/SW.Bitween.HttpTests/SW.Bitween.HttpTests.csproj
@@ -4,8 +4,6 @@
     <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
-    <!-- The web project builds the admin UI unless told not to; these tests need only the API. -->
-    <SkipClientBuild>true</SkipClientBuild>
   </PropertyGroup>
 
   <ItemGroup>
@@ -25,9 +23,12 @@
 
   <ItemGroup>
     <ProjectReference Include="..\SW.Bitween.Cli\SW.Bitween.Cli.csproj" />
-    <ProjectReference Include="..\SW.Bitween.Web\SW.Bitween.Web.csproj">
-      <Properties>SkipClientBuild=true</Properties>
-    </ProjectReference>
+    <!-- No <Properties> on this reference. MSBuild builds a project once per set of properties, so a
+         property set here builds SW.Bitween.Web a second time beside the solution's own build of it,
+         into the same obj folder, and the two can collide on rpswa.dswa.cache.json. There is nothing
+         to skip either: the admin UI is built only on publish (BuildClientApp runs after
+         ComputeFilesToPublish), which a project reference never runs. -->
+    <ProjectReference Include="..\SW.Bitween.Web\SW.Bitween.Web.csproj" />
   </ItemGroup>
 
 </Project>