diff --git a/src/DeepCopy/CopierGenerator.cs b/src/DeepCopy/CopierGenerator.cs
index 008e4db..0f77e6f 100644
--- a/src/DeepCopy/CopierGenerator.cs
+++ b/src/DeepCopy/CopierGenerator.cs
@@ -23,6 +23,9 @@ public static T Copy(T original, CopyContext context)
             if (original == null) return original;
 
             var type = original.GetType();
+
+            if (type.FullName?.Equals("System.RuntimeType", StringComparison.InvariantCulture) ?? false) return original;
+            
             if (type == GenericType) return MatchingTypeCopier(original, context);
 
             var result = Copiers.GetOrAdd(type, GenerateCopier);
diff --git a/test/DeepCopy.UnitTests/CopyTests.cs b/test/DeepCopy.UnitTests/CopyTests.cs
index 6dd07e4..dc1cb2c 100644
--- a/test/DeepCopy.UnitTests/CopyTests.cs
+++ b/test/DeepCopy.UnitTests/CopyTests.cs
@@ -8,6 +8,14 @@ namespace DeepCopy.UnitTests
     [Trait("TestCategory", "BVT")]
     public class CopyTests
     {
+        [Fact]
+        public void CanCopyTypes()
+        {
+            var original = typeof(string);
+            var result = DeepCopier.Copy(original);
+            Assert.Same(original, result);
+        }
+        
         [Fact]
         public void CanCopyStrings()
         {