diff --git a/src/SourceBuild/content/repo-projects/aspnetcore.proj b/src/SourceBuild/content/repo-projects/aspnetcore.proj
index f20c61b71..afdd47c63 100644
--- a/src/SourceBuild/content/repo-projects/aspnetcore.proj
+++ b/src/SourceBuild/content/repo-projects/aspnetcore.proj
@@ -3,9 +3,9 @@
 
   <PropertyGroup>
     <OverrideTargetRid>$(TargetRid)</OverrideTargetRid>
-    <OverrideTargetRid Condition="'$(TargetOS)' == 'OSX'">osx-x64</OverrideTargetRid>
-    <OverrideTargetRid Condition="'$(TargetOS)' == 'FreeBSD'">freebsd-x64</OverrideTargetRid>
-    <OverrideTargetRid Condition="'$(TargetOS)' == 'Windows_NT'">win-x64</OverrideTargetRid>
+    <OverrideTargetRid Condition="'$(TargetOS)' == 'OSX'">osx-$(Platform)</OverrideTargetRid>
+    <OverrideTargetRid Condition="'$(TargetOS)' == 'FreeBSD'">freebsd-$(Platform)</OverrideTargetRid>
+    <OverrideTargetRid Condition="'$(TargetOS)' == 'Windows_NT'">win-$(Platform)</OverrideTargetRid>
 
     <!-- StandardSourceBuildArgs include -publish which is not supported by the aspnetcore build script. -->
     <BuildCommandArgs>$(StandardSourceBuildArgs.Replace('--publish', ''))</BuildCommandArgs>
diff --git a/src/SourceBuild/content/repo-projects/installer.proj b/src/SourceBuild/content/repo-projects/installer.proj
index 6dc870be9..42ef91233 100644
--- a/src/SourceBuild/content/repo-projects/installer.proj
+++ b/src/SourceBuild/content/repo-projects/installer.proj
@@ -7,9 +7,9 @@
 
   <PropertyGroup>
     <OverrideTargetRid>$(TargetRid)</OverrideTargetRid>
-    <OverrideTargetRid Condition="'$(TargetOS)' == 'OSX'">osx-x64</OverrideTargetRid>
-    <OverrideTargetRid Condition="'$(TargetOS)' == 'FreeBSD'">freebsd-x64</OverrideTargetRid>
-    <OverrideTargetRid Condition="'$(TargetOS)' == 'Windows_NT'">win-x64</OverrideTargetRid>
+    <OverrideTargetRid Condition="'$(TargetOS)' == 'OSX'">osx-$(Platform)</OverrideTargetRid>
+    <OverrideTargetRid Condition="'$(TargetOS)' == 'FreeBSD'">freebsd-$(Platform)</OverrideTargetRid>
+    <OverrideTargetRid Condition="'$(TargetOS)' == 'Windows_NT'">win-$(Platform)</OverrideTargetRid>
     <OSNameOverride>$(OverrideTargetRid.Substring(0, $(OverrideTargetRid.IndexOf("-"))))</OSNameOverride>
 
     <!-- Determine target portable rid based on bootstrap SDK's portable rid -->
diff --git a/src/SourceBuild/content/repo-projects/runtime.proj b/src/SourceBuild/content/repo-projects/runtime.proj
index 231c9b464..c477000a6 100644
--- a/src/SourceBuild/content/repo-projects/runtime.proj
+++ b/src/SourceBuild/content/repo-projects/runtime.proj
@@ -8,9 +8,9 @@
     <CleanCommand>$(ProjectDirectory)/clean$(ShellExtension)</CleanCommand>
 
     <OverrideTargetRid>$(TargetRid)</OverrideTargetRid>
-    <OverrideTargetRid Condition="'$(TargetOS)' == 'OSX'">osx-x64</OverrideTargetRid>
-    <OverrideTargetRid Condition="'$(TargetOS)' == 'FreeBSD'">freebsd-x64</OverrideTargetRid>
-    <OverrideTargetRid Condition="'$(TargetOS)' == 'Windows_NT'">win-x64</OverrideTargetRid>
+    <OverrideTargetRid Condition="'$(TargetOS)' == 'OSX'">osx-$(Platform)</OverrideTargetRid>
+    <OverrideTargetRid Condition="'$(TargetOS)' == 'FreeBSD'">freebsd-$(Platform)</OverrideTargetRid>
+    <OverrideTargetRid Condition="'$(TargetOS)' == 'Windows_NT'">win-$(Platform)</OverrideTargetRid>
 
     <_platformIndex>$(NETCoreSdkRuntimeIdentifier.LastIndexOf('-'))</_platformIndex>
     <RuntimeOS>$(NETCoreSdkRuntimeIdentifier.Substring(0, $(_platformIndex)))</RuntimeOS>