diff --git a/dotnet/targets/Xamarin.Shared.Sdk.TargetFrameworkInference.targets b/dotnet/targets/Xamarin.Shared.Sdk.TargetFrameworkInference.targets
index d265a4d20c00..2541921df384 100644
--- a/dotnet/targets/Xamarin.Shared.Sdk.TargetFrameworkInference.targets
+++ b/dotnet/targets/Xamarin.Shared.Sdk.TargetFrameworkInference.targets
@@ -8,4 +8,13 @@
     <_TargetFrameworkPlatform Condition="'$(_PlatformName)' == 'macOS'">macos</_TargetFrameworkPlatform>
     <_ComputedTargetFrameworkMoniker Condition=" '$(_TargetFrameworkPlatform)' != '' ">$(TargetFrameworkMoniker),Profile=$(_TargetFrameworkPlatform)</_ComputedTargetFrameworkMoniker>
   </PropertyGroup>
+
+  <!-- Normalize the casing of TargetPlatformIdentifier to Apple's casing -->
+  <!-- Ref: https://github.com/dotnet/designs/blob/8e6394406d44f75f30ea2259a425cb9e38d75b69/accepted/2020/net5/net5.md#valid-platforms -->
+  <PropertyGroup>
+    <TargetPlatformIdentifier Condition="'$(TargetPlatformIdentifier)' == 'ios'">iOS</TargetPlatformIdentifier>
+    <TargetPlatformIdentifier Condition="'$(TargetPlatformIdentifier)' == 'tvos'">tvOS</TargetPlatformIdentifier>
+    <TargetPlatformIdentifier Condition="'$(TargetPlatformIdentifier)' == 'watchos'">watchOS</TargetPlatformIdentifier>
+    <TargetPlatformIdentifier Condition="'$(TargetPlatformIdentifier)' == 'macos'">macOS</TargetPlatformIdentifier>
+  </PropertyGroup>
 </Project>