diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index 1e722177f0..174d1cb8a2 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -221,7 +221,7 @@
   <PropertyGroup Condition="'$(IsOSX)' == 'true' and
                             '$(RuntimeIdentifier)' == ''">
     <_UsingDefaultRuntimeIdentifier>true</_UsingDefaultRuntimeIdentifier>
-    <RuntimeIdentifier>osx-$(Architecture)</RuntimeIdentifier>
+    <RuntimeIdentifier>osx-x64</RuntimeIdentifier>
   </PropertyGroup>
 
 </Project>