diff --git a/Sources/CustomDump/Conformances/Foundation.swift b/Sources/CustomDump/Conformances/Foundation.swift
index 3158488..5a4f28b 100644
--- a/Sources/CustomDump/Conformances/Foundation.swift
+++ b/Sources/CustomDump/Conformances/Foundation.swift
@@ -325,3 +325,23 @@ extension UUID: CustomDumpStringConvertible {
     "UUID(\(self.uuidString))"
   }
 }
+
+extension KeyPath: CustomDumpExcludeSuperclass {}
+extension CFNumber: CustomDumpExcludeSuperclass {}
+extension NSNumber: CustomDumpExcludeSuperclass {}
+extension NSMutableAttributedString: CustomDumpExcludeSuperclass {}
+extension NSCalendar: CustomDumpExcludeSuperclass {}
+extension NSCountedSet: CustomDumpExcludeSuperclass {}
+#if !os(WASI)
+extension NSData: CustomDumpExcludeSuperclass {}
+extension NSDate: CustomDumpExcludeSuperclass {}
+extension NSNotification: CustomDumpExcludeSuperclass {}
+extension NSTimeZone: CustomDumpExcludeSuperclass {}
+extension NSURLRequest: CustomDumpExcludeSuperclass {}
+#endif
+extension NSDictionary: CustomDumpExcludeSuperclass {}
+extension NSString: CustomDumpExcludeSuperclass {}
+extension NSLocale: CustomDumpExcludeSuperclass {}
+#if os(iOS) || os(macOS) || os(tvOS) || os(watchOS)
+extension NSExpression: CustomDumpExcludeSuperclass {}
+#endif
diff --git a/Sources/CustomDump/CustomDumpChildren.swift b/Sources/CustomDump/CustomDumpChildren.swift
index cdee3bb..2f3878b 100644
--- a/Sources/CustomDump/CustomDumpChildren.swift
+++ b/Sources/CustomDump/CustomDumpChildren.swift
@@ -1,5 +1,5 @@
-/// Implement this protocol to include superclass nodes
-public protocol CustomDumpIncludeSuperclass {}
+/// Implement this protocol to exclude superclass nodes
+public protocol CustomDumpExcludeSuperclass {}
 
 /// Implement this protocol to ignore dumping child nodes
 ///
diff --git a/Sources/CustomDump/Dump.swift b/Sources/CustomDump/Dump.swift
index d3ede71..5c7d7a6 100644
--- a/Sources/CustomDump/Dump.swift
+++ b/Sources/CustomDump/Dump.swift
@@ -1,3 +1,4 @@
+import Foundation
 /// Dumps the given value's contents using its mirror to standard output.
 ///
 /// This function aims to dump the contents of a value into a nicely formatted, tree-like
@@ -262,7 +263,7 @@ public func customDump<T, TargetStream>(
         }
       }
 
-      if let superclassMirror = mirror.superclassMirror, value is CustomDumpIncludeSuperclass {
+      if let superclassMirror = mirror.superclassMirror, superclassMirror.subjectType != NSObject.self, !(value is CustomDumpExcludeSuperclass) {
         out.write("\n")
         dumpMirror(mirror: superclassMirror)
       }
diff --git a/Tests/CustomDumpTests/DumpTests.swift b/Tests/CustomDumpTests/DumpTests.swift
index 36065de..cf680e2 100644
--- a/Tests/CustomDumpTests/DumpTests.swift
+++ b/Tests/CustomDumpTests/DumpTests.swift
@@ -723,7 +723,7 @@ final class DumpTests: XCTestCase {
       let age = 97
     }
 
-    class Doctor: Human, CustomDumpIncludeSuperclass {
+    class Doctor: Human {
       let field = "Podiatry"
     }
 
@@ -750,7 +750,7 @@ final class DumpTests: XCTestCase {
       let age = 97
     }
 
-    class Doctor: Human, CustomDumpIncludeSuperclass {
+    class Doctor: Human {
       let field = "Podiatry"
     }