diff --git a/src/libraries/tests.proj b/src/libraries/tests.proj
index 2856608086327..05d56f00feedd 100644
--- a/src/libraries/tests.proj
+++ b/src/libraries/tests.proj
@@ -37,6 +37,11 @@
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices\tests\DllImportGenerator.Tests\DllImportGenerator.Tests.csproj" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TargetOS)' == 'windows' and '$(TargetArchitecture)' == 'arm'">
+    <!-- DllImportGenerator runtime tests depend on DNNE, which does not support Windows ARM32 as we don't officially support it. -->
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices\tests\DllImportGenerator.Tests\DllImportGenerator.Tests.csproj" />
+  </ItemGroup>
+
   <ItemGroup Condition="'$(TargetOS)' == 'FreeBSD'">
     <!-- DllImportGenerator runtime tests build depends pulling down a pre-built nethost binary, which is not available for FreeBSD. -->
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.InteropServices\tests\DllImportGenerator.Tests\DllImportGenerator.Tests.csproj" />