diff --git a/CapnpC.CSharp.Generator/CapnpC.CSharp.Generator.csproj b/CapnpC.CSharp.Generator/CapnpC.CSharp.Generator.csproj
index 5e6cd66..5afac01 100644
--- a/CapnpC.CSharp.Generator/CapnpC.CSharp.Generator.csproj
+++ b/CapnpC.CSharp.Generator/CapnpC.CSharp.Generator.csproj
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(TargetFramework)|$(Platform)'=='Release|netstandard2.0|AnyCPU'">
-    <DebugType>full</DebugType>
+    <DebugType>portable</DebugType>
     <DebugSymbols>true</DebugSymbols>
   </PropertyGroup>
 
diff --git a/scripts/measure-coverage.ps1 b/scripts/measure-coverage.ps1
index fa9f634..8c02750 100644
--- a/scripts/measure-coverage.ps1
+++ b/scripts/measure-coverage.ps1
@@ -29,7 +29,7 @@ If(!(test-path $coverageReportDir))
   -mergebyhash -register:user -oldStyle
 
 & $openCover -target:"$vsTestConsole" `
-  -targetArgs:"$generatorTests /logger:trx;LogFileName=generator.trx" `
+  -targetArgs:"/inIsolation $generatorTests /logger:trx;LogFileName=generator.trx /Platform:x86" `
   -filter:"+[CapnpC.CSharp.Generator]CapnpC.CSharp.Generator.* -[CapnpC.CSharp.Generator]CapnpC.CSharp.Generator.Schema.*" `
   -excludebyattribute:"System.CodeDom.Compiler.GeneratedCodeAttribute" `
   -output:"$coverageOutput" `