diff --git a/eng/SourceBuild.props b/eng/SourceBuild.props
index 937ef36181d..41664e81ea6 100644
--- a/eng/SourceBuild.props
+++ b/eng/SourceBuild.props
@@ -2,6 +2,7 @@
   <PropertyGroup>
     <GitHubRepositoryName>razor</GitHubRepositoryName>
     <SourceBuildManagedOnly>true</SourceBuildManagedOnly>
+    <SourceBuildTrimNetFrameworkTargets>true</SourceBuildTrimNetFrameworkTargets>
     <CloneSubmodulesToInnerSourceBuildRepo>false</CloneSubmodulesToInnerSourceBuildRepo>
   </PropertyGroup>