diff --git a/src/env-inl.h b/src/env-inl.h
index b32f3ee63d9b21..33c7868e247c7d 100644
--- a/src/env-inl.h
+++ b/src/env-inl.h
@@ -883,9 +883,7 @@ inline void Environment::SetMethod(v8::Local<v8::Object> that,
   v8::Local<v8::Context> context = isolate()->GetCurrentContext();
   v8::Local<v8::Function> function =
       NewFunctionTemplate(callback, v8::Local<v8::Signature>(),
-                          // TODO(TimothyGu): Investigate if SetMethod is ever
-                          // used for constructors.
-                          v8::ConstructorBehavior::kAllow,
+                          v8::ConstructorBehavior::kThrow,
                           v8::SideEffectType::kHasSideEffect)
           ->GetFunction(context)
           .ToLocalChecked();
@@ -903,9 +901,7 @@ inline void Environment::SetMethodNoSideEffect(v8::Local<v8::Object> that,
   v8::Local<v8::Context> context = isolate()->GetCurrentContext();
   v8::Local<v8::Function> function =
       NewFunctionTemplate(callback, v8::Local<v8::Signature>(),
-                          // TODO(TimothyGu): Investigate if SetMethod is ever
-                          // used for constructors.
-                          v8::ConstructorBehavior::kAllow,
+                          v8::ConstructorBehavior::kThrow,
                           v8::SideEffectType::kHasNoSideEffect)
           ->GetFunction(context)
           .ToLocalChecked();
diff --git a/test/parallel/test-process-chdir.js b/test/parallel/test-process-chdir.js
index e66d366fb7874f..005e17fac25a90 100644
--- a/test/parallel/test-process-chdir.js
+++ b/test/parallel/test-process-chdir.js
@@ -42,3 +42,8 @@ const err = {
 };
 common.expectsError(function() { process.chdir({}); }, err);
 common.expectsError(function() { process.chdir(); }, err);
+
+// Check that our built-in methods do not have a prototype/constructor behaviour
+// if they don't need to. This could be tested for any of our C++ methods.
+assert.strictEqual(process.cwd.prototype, undefined);
+assert.throws(() => new process.cwd(), TypeError);