diff --git a/Libraries/LibJS/Runtime/Error.h b/Libraries/LibJS/Runtime/Error.h
index 3632a83c93..6669236fe7 100644
--- a/Libraries/LibJS/Runtime/Error.h
+++ b/Libraries/LibJS/Runtime/Error.h
@@ -47,14 +47,14 @@ protected:
     explicit Error(Object& prototype);
 
 private:
-    virtual bool is_error() const final { return true; }
+    virtual bool is_error_object() const final { return true; }
 
     void populate_stack();
     Vector<TracebackFrame, 32> m_traceback;
 };
 
 template<>
-inline bool Object::fast_is<Error>() const { return is_error(); }
+inline bool Object::fast_is<Error>() const { return is_error_object(); }
 
 // NOTE: Making these inherit from Error is not required by the spec but
 //       our way of implementing the [[ErrorData]] internal slot, which is
diff --git a/Libraries/LibJS/Runtime/Object.h b/Libraries/LibJS/Runtime/Object.h
index e4e769173f..8e7e1bbf12 100644
--- a/Libraries/LibJS/Runtime/Object.h
+++ b/Libraries/LibJS/Runtime/Object.h
@@ -197,7 +197,7 @@ public:
 
     virtual bool is_function() const { return false; }
     virtual bool is_promise() const { return false; }
-    virtual bool is_error() const { return false; }
+    virtual bool is_error_object() const { return false; }
     virtual bool is_date() const { return false; }
     virtual bool is_number_object() const { return false; }
     virtual bool is_boolean_object() const { return false; }