diff --git a/tests/CodeBehind/BuildTests/Properties/AssemblyInfo.cs b/tests/CodeBehind/BuildTests/Properties/AssemblyInfo.cs
index 9c50308b3c6..4b991ef195c 100644
--- a/tests/CodeBehind/BuildTests/Properties/AssemblyInfo.cs
+++ b/tests/CodeBehind/BuildTests/Properties/AssemblyInfo.cs
@@ -1,7 +1,14 @@
 using System.Reflection;
 using System.Runtime.CompilerServices;
+using System.Runtime.Versioning;
 using Android.App;
 
+// This assembly only ever runs on Android (minimum API level 24). Without this
+// attribute the platform-compatibility analyzer treats the assembly as platform-neutral
+// (because GenerateAssemblyInfo is disabled) and emits spurious CA1416 warnings for every
+// call to an [SupportedOSPlatform("android24.0")] API.
+[assembly: SupportedOSPlatform ("android24.0")]
+
 // Information about this assembly is defined by the following attributes. 
 // Change them to the values specific to your project.
 
diff --git a/tests/Mono.Android-Tests/Mono.Android-Tests/Properties/AssemblyInfo.cs b/tests/Mono.Android-Tests/Mono.Android-Tests/Properties/AssemblyInfo.cs
index dbb0cde4889..087e2bdec67 100644
--- a/tests/Mono.Android-Tests/Mono.Android-Tests/Properties/AssemblyInfo.cs
+++ b/tests/Mono.Android-Tests/Mono.Android-Tests/Properties/AssemblyInfo.cs
@@ -1,7 +1,14 @@
 using System.Reflection;
 using System.Runtime.CompilerServices;
+using System.Runtime.Versioning;
 using Android.App;
 
+// This test assembly only ever runs on Android (minimum API level 24). Without this
+// attribute the platform-compatibility analyzer treats the assembly as platform-neutral
+// (because GenerateAssemblyInfo is disabled) and emits spurious CA1416 warnings for every
+// call to an [SupportedOSPlatform("android24.0")] API.
+[assembly: SupportedOSPlatform ("android24.0")]
+
 // Information about this assembly is defined by the following attributes. 
 // Change them to the values specific to your project.
 
diff --git a/tests/TestRunner.Core/Properties/AssemblyInfo.cs b/tests/TestRunner.Core/Properties/AssemblyInfo.cs
index f03603e4cd2..92913128458 100644
--- a/tests/TestRunner.Core/Properties/AssemblyInfo.cs
+++ b/tests/TestRunner.Core/Properties/AssemblyInfo.cs
@@ -1,7 +1,14 @@
 using System.Reflection;
 using System.Runtime.CompilerServices;
+using System.Runtime.Versioning;
 using Android.App;
 
+// This assembly only ever runs on Android (minimum API level 24). Without this
+// attribute the platform-compatibility analyzer treats the assembly as platform-neutral
+// (because GenerateAssemblyInfo is disabled) and emits spurious CA1416 warnings for every
+// call to an [SupportedOSPlatform("android24.0")] API.
+[assembly: SupportedOSPlatform ("android24.0")]
+
 // Information about this assembly is defined by the following attributes. 
 // Change them to the values specific to your project.