diff --git a/src/libraries/Microsoft.NETCore.Platforms/src/Microsoft.NETCore.Platforms.csproj b/src/libraries/Microsoft.NETCore.Platforms/src/Microsoft.NETCore.Platforms.csproj
index eb2be04a4ca5e..696bcf801b2f8 100644
--- a/src/libraries/Microsoft.NETCore.Platforms/src/Microsoft.NETCore.Platforms.csproj
+++ b/src/libraries/Microsoft.NETCore.Platforms/src/Microsoft.NETCore.Platforms.csproj
@@ -19,7 +19,7 @@
     <!-- When building from source, ensure the RID we're building for is part of the RID graph -->
     <AdditionalRuntimeIdentifiers Condition="'$(DotNetBuildFromSource)' == 'true'">$(AdditionalRuntimeIdentifiers);$(OutputRID)</AdditionalRuntimeIdentifiers>
     <ServicingVersion>13</ServicingVersion>
-    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'">
diff --git a/src/libraries/System.Security.AccessControl/src/System.Security.AccessControl.csproj b/src/libraries/System.Security.AccessControl/src/System.Security.AccessControl.csproj
index 6a6304598900b..3798a01785347 100644
--- a/src/libraries/System.Security.AccessControl/src/System.Security.AccessControl.csproj
+++ b/src/libraries/System.Security.AccessControl/src/System.Security.AccessControl.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>$(NetCoreAppCurrent)-windows;$(NetCoreAppCurrent);netstandard2.0-windows;netstandard2.0;net461-windows</TargetFrameworks>
     <IsPackable>true</IsPackable>
     <!-- If you enable GeneratePackageOnBuild for this package and bump ServicingVersion, make sure to also bump ServicingVersion in Microsoft.Windows.Compatibility.csproj once for the next release. -->
-    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
     <ServicingVersion>1</ServicingVersion>
     <PackageDescription>Provides base classes that enable managing access and audit control lists on securable objects.