diff --git a/build-tools/mono-runtimes/mono-runtimes.targets b/build-tools/mono-runtimes/mono-runtimes.targets
index fcc85be4a08..dfe1639d5a1 100644
--- a/build-tools/mono-runtimes/mono-runtimes.targets
+++ b/build-tools/mono-runtimes/mono-runtimes.targets
@@ -58,7 +58,10 @@
     <_BclExcludeDebugSymbols  Include="System.Windows.dll" />
     <_BclExcludeDebugSymbols  Include="System.Xml.Serialization.dll" />
     <_BclTestAssemblyDestination  Include="@(MonoTestAssembly->'$(XAInstallPrefix)\..\..\bcl-tests\%(Identity)')" />
-    <_BclTestAssemblyDestination  Include="@(MonoTestAssembly->'$(XAInstallPrefix)\..\..\bcl-tests\%(Filename).pdb')" />
+    <_BclTestAssemblyDestination
+        Include="@(MonoTestAssembly->'$(XAInstallPrefix)\..\..\bcl-tests\%(Filename).pdb')"
+        Exclude="$(XAInstallPrefix)\..\..\bcl-tests\System.Runtime.CompilerServices.Unsafe.pdb"
+    />
     <_BclTestAssemblyDestination  Include="@(MonoTestRunner->'$(XAInstallPrefix)\..\..\bcl-tests\%(Identity)')" />
     <_BclTestAssemblyDestination  Include="@(MonoTestRunner->'$(XAInstallPrefix)\..\..\bcl-tests\%(Filename).pdb')" />
   </ItemGroup>