diff --git a/src/Web/Avalonia.Web/Avalonia.Web.targets b/src/Web/Avalonia.Web/Avalonia.Web.targets
index b6a09b33ef..b5db8e5dd3 100644
--- a/src/Web/Avalonia.Web/Avalonia.Web.targets
+++ b/src/Web/Avalonia.Web/Avalonia.Web.targets
@@ -12,7 +12,7 @@
     <WasmBuildNative>true</WasmBuildNative>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(UseAvaloniaWasmDefaultOptimizations)'=='True'">
+  <PropertyGroup Condition="'$(UseAvaloniaWasmDefaultOptimizations)'=='True' && '$(Configuration)' == 'Release'">
     <PublishTrimmed>true</PublishTrimmed>
     <TrimMode>full</TrimMode>
     <InvariantGlobalization>true</InvariantGlobalization>