diff --git a/Kernel/KString.h b/Kernel/KString.h
index 1a2af2f318..44fc324d60 100644
--- a/Kernel/KString.h
+++ b/Kernel/KString.h
@@ -63,6 +63,14 @@ struct Formatter<OwnPtr<Kernel::KString>> : Formatter<StringView> {
     }
 };
 
+template<>
+struct Formatter<NonnullOwnPtr<Kernel::KString>> : Formatter<StringView> {
+    void format(FormatBuilder& builder, NonnullOwnPtr<Kernel::KString> const& value)
+    {
+        Formatter<StringView>::format(builder, value->view());
+    }
+};
+
 template<>
 struct Traits<NonnullOwnPtr<Kernel::KString>> : public GenericTraits<NonnullOwnPtr<Kernel::KString>> {
     using PeekType = Kernel::KString*;