diff --git a/src/tools/illink/src/ILLink.Tasks/build/Microsoft.NET.ILLink.targets b/src/tools/illink/src/ILLink.Tasks/build/Microsoft.NET.ILLink.targets
index 25b31b223fe16f..565c3c60ea65ca 100644
--- a/src/tools/illink/src/ILLink.Tasks/build/Microsoft.NET.ILLink.targets
+++ b/src/tools/illink/src/ILLink.Tasks/build/Microsoft.NET.ILLink.targets
@@ -36,8 +36,7 @@ Copyright (c) .NET Foundation. All rights reserved.
       by default since they may require assemblies, types or members that
       could be removed by the ILLink, causing a trimmed app to crash. -->
   <PropertyGroup Condition="'$(PublishTrimmed)' == 'true'">
-    <StartupHookSupport Condition="'$(StartupHookSupport)' == ''">false</StartupHookSupport>
-    <MetadataUpdaterSupport Condition="'$(MetadataUpdaterSupport)' == ''">false</MetadataUpdaterSupport>
+    <StartupHookSupport Condition="'$(StartupHookSupport)' == '' and '$(Configuration)' != 'Debug'">false</StartupHookSupport>
     <CustomResourceTypesSupport Condition="'$(CustomResourceTypesSupport)' == ''">false</CustomResourceTypesSupport>
     <EnableUnsafeBinaryFormatterInDesigntimeLicenseContextSerialization Condition="'$(EnableUnsafeBinaryFormatterInDesigntimeLicenseContextSerialization)' == ''">false</EnableUnsafeBinaryFormatterInDesigntimeLicenseContextSerialization>
     <EnableUnsafeBinaryFormatterSerialization Condition="'$(EnableUnsafeBinaryFormatterSerialization)' == ''">false</EnableUnsafeBinaryFormatterSerialization>