diff --git a/src/ImageSharp/Memory/Allocators/Internals/UniformUnmanagedMemoryPool.cs b/src/ImageSharp/Memory/Allocators/Internals/UniformUnmanagedMemoryPool.cs
index d709937deb..40fbee4d72 100644
--- a/src/ImageSharp/Memory/Allocators/Internals/UniformUnmanagedMemoryPool.cs
+++ b/src/ImageSharp/Memory/Allocators/Internals/UniformUnmanagedMemoryPool.cs
@@ -114,7 +114,7 @@ namespace SixLabors.ImageSharp.Memory.Internals
                     result[i] = buffersLocal[this.index];
                     buffersLocal[this.index++] = null;
 
-                    if (result[i].IsInvalid)
+                    if (result[i]?.IsInvalid == true)
                     {
                         throw new InvalidOperationException("Renting disposed handle :O !!!");
                     }