diff --git a/Ryujinx.Memory.Tests/Tests.cs b/Ryujinx.Memory.Tests/Tests.cs
index c5a7842ec..2717b76ad 100644
--- a/Ryujinx.Memory.Tests/Tests.cs
+++ b/Ryujinx.Memory.Tests/Tests.cs
@@ -39,14 +39,10 @@ namespace Ryujinx.Memory.Tests
         }
 
         [Test]
+        // Memory aliasing tests fail on CI at the moment.
+        [Platform(Exclude = "MacOsX")]
         public void Test_Alias()
         {
-            if (OperatingSystem.IsMacOS())
-            {
-                // Memory aliasing tests fail on CI at the moment.
-                return;
-            }
-
             using MemoryBlock backing = new MemoryBlock(0x10000, MemoryAllocationFlags.Mirrorable);
             using MemoryBlock toAlias = new MemoryBlock(0x10000, MemoryAllocationFlags.Reserve | MemoryAllocationFlags.ViewCompatible);
 
@@ -58,14 +54,10 @@ namespace Ryujinx.Memory.Tests
         }
 
         [Test]
+        // Memory aliasing tests fail on CI at the moment.
+        [Platform(Exclude = "MacOsX")]
         public void Test_AliasRandom()
         {
-            if (OperatingSystem.IsMacOS())
-            {
-                // Memory aliasing tests fail on CI at the moment.
-                return;
-            }
-
             using MemoryBlock backing = new MemoryBlock(0x80000, MemoryAllocationFlags.Mirrorable);
             using MemoryBlock toAlias = new MemoryBlock(0x80000, MemoryAllocationFlags.Reserve | MemoryAllocationFlags.ViewCompatible);
 
@@ -94,14 +86,10 @@ namespace Ryujinx.Memory.Tests
         }
 
         [Test]
+        // Memory aliasing tests fail on CI at the moment.
+        [Platform(Exclude = "MacOsX")]
         public void Test_AliasMapLeak()
         {
-            if (OperatingSystem.IsMacOS())
-            {
-                // Memory aliasing tests fail on CI at the moment.
-                return;
-            }
-
             ulong pageSize = 4096;
             ulong size = 100000 * pageSize; // The mappings limit on Linux is usually around 65K, so let's make sure we are above that.
 
diff --git a/Ryujinx.Tests/Memory/PartialUnmaps.cs b/Ryujinx.Tests/Memory/PartialUnmaps.cs
index 91de2df5e..31104dac9 100644
--- a/Ryujinx.Tests/Memory/PartialUnmaps.cs
+++ b/Ryujinx.Tests/Memory/PartialUnmaps.cs
@@ -57,14 +57,10 @@ namespace Ryujinx.Tests.Memory
         }
 
         [Test]
+        // Memory aliasing tests fail on CI at the moment.
+        [Platform(Exclude = "MacOsX")]
         public void PartialUnmap([Values] bool readOnly)
         {
-            if (OperatingSystem.IsMacOS())
-            {
-                // Memory aliasing tests fail on CI at the moment.
-                return;
-            }
-
             // Set up an address space to test partial unmapping.
             // Should register the signal handler to deal with this on Windows.
             ulong vaSize = 0x100000;
@@ -205,13 +201,10 @@ namespace Ryujinx.Tests.Memory
         }
 
         [Test]
+        // Memory aliasing tests fail on CI at the moment.
+        [Platform(Exclude = "MacOsX")]
         public unsafe void PartialUnmapNative()
         {
-            if (OperatingSystem.IsMacOS())
-            {
-                // Memory aliasing tests fail on CI at the moment.
-                return;
-            }
 
             // Set up an address space to test partial unmapping.
             // Should register the signal handler to deal with this on Windows.
@@ -288,26 +281,16 @@ namespace Ryujinx.Tests.Memory
         }
 
         [Test]
+        // Only test in Windows, as this is only used on Windows and uses Windows APIs for trimming.
+        [Platform("Win")]
         public void ThreadLocalMap()
         {
-            if (!OperatingSystem.IsWindows())
-            {
-                // Only test in Windows, as this is only used on Windows and uses Windows APIs for trimming.
-                return;
-            }
-
             PartialUnmapState.Reset();
             ref var state = ref PartialUnmapState.GetRef();
 
             bool running = true;
             var testThread = new Thread(() =>
             {
-                if (!OperatingSystem.IsWindows())
-                {
-                    // Need this here to avoid a warning.
-                    return;
-                }
-
                 PartialUnmapState.GetRef().RetryFromAccessViolation();
                 while (running)
                 {
@@ -334,14 +317,10 @@ namespace Ryujinx.Tests.Memory
         }
 
         [Test]
+        // Only test in Windows, as this is only used on Windows and uses Windows APIs for trimming.
+        [Platform("Win")]
         public unsafe void ThreadLocalMapNative()
         {
-            if (!OperatingSystem.IsWindows())
-            {
-                // Only test in Windows, as this is only used on Windows and uses Windows APIs for trimming.
-                return;
-            }
-
             EnsureTranslator();
 
             PartialUnmapState.Reset();
@@ -485,4 +464,4 @@ namespace Ryujinx.Tests.Memory
             Assert.False(error);
         }
     }
-}
+}
\ No newline at end of file