diff --git a/tensorflow/api_template.__init__.py b/tensorflow/api_template.__init__.py
index bda4d908088..aaa7a1a2c7d 100644
--- a/tensorflow/api_template.__init__.py
+++ b/tensorflow/api_template.__init__.py
@@ -55,23 +55,20 @@ elif _tf_api_dir not in __path__:
 # Hook external TensorFlow modules.
 try:
   from tensorboard.summary._tf import summary
-  _current_module.__path__ = (
-      [_module_util.get_parent_dir(summary)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(summary))
 except ImportError:
   _logging.warning(
       "Limited tf.summary API due to missing TensorBoard installation.")
 
 try:
   from tensorflow_estimator.python.estimator.api._v2 import estimator
-  _current_module.__path__ = (
-      [_module_util.get_parent_dir(estimator)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(estimator))
 except ImportError:
   pass
 
 try:
   from tensorflow.python.keras.api._v2 import keras
-  _current_module.__path__ = ([
-      _module_util.get_parent_dir(keras)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(keras))
 except ImportError:
   pass
 
diff --git a/tensorflow/api_template_v1.__init__.py b/tensorflow/api_template_v1.__init__.py
index 8a14abc3c2c..f27c2bc7a52 100644
--- a/tensorflow/api_template_v1.__init__.py
+++ b/tensorflow/api_template_v1.__init__.py
@@ -44,15 +44,13 @@ elif _tf_api_dir not in __path__:
 # Hook external TensorFlow modules.
 try:
   from tensorflow_estimator.python.estimator.api._v1 import estimator
-  _current_module.__path__ = (
-      [_module_util.get_parent_dir(estimator)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(estimator))
 except ImportError:
   pass
 
 try:
   from tensorflow.python.keras.api._v1 import keras
-  _current_module.__path__ = (
-      [_module_util.get_parent_dir(keras)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(keras))
 except ImportError:
   pass
 
diff --git a/tensorflow/compat_template.__init__.py b/tensorflow/compat_template.__init__.py
index ad2443a0c32..f50dfbd239f 100644
--- a/tensorflow/compat_template.__init__.py
+++ b/tensorflow/compat_template.__init__.py
@@ -32,8 +32,7 @@ from tensorflow.python.tools import module_util as _module_util
 _current_module = _sys.modules[__name__]
 try:
   from tensorboard.summary._tf import summary
-  _current_module.__path__ = (
-      [_module_util.get_parent_dir(summary)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(summary))
 except ImportError:
   _logging.warning(
       "Limited tf.compat.v2.summary API due to missing TensorBoard "
@@ -41,15 +40,13 @@ except ImportError:
 
 try:
   from tensorflow_estimator.python.estimator.api._v2 import estimator
-  _current_module.__path__ = (
-      [_module_util.get_parent_dir(estimator)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(estimator))
 except ImportError:
   pass
 
 try:
   from tensorflow.python.keras.api._v2 import keras
-  _current_module.__path__ = (
-      [_module_util.get_parent_dir(keras)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(keras))
 except ImportError:
   pass
 
diff --git a/tensorflow/compat_template_v1.__init__.py b/tensorflow/compat_template_v1.__init__.py
index 23c722edef7..0a553150148 100644
--- a/tensorflow/compat_template_v1.__init__.py
+++ b/tensorflow/compat_template_v1.__init__.py
@@ -31,15 +31,13 @@ from tensorflow.python.tools import module_util as _module_util
 _current_module = _sys.modules[__name__]
 try:
   from tensorflow_estimator.python.estimator.api._v1 import estimator
-  _current_module.__path__ = (
-      [_module_util.get_parent_dir(estimator)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(estimator))
 except ImportError:
   pass
 
 try:
   from tensorflow.python.keras.api._v1 import keras
-  _current_module.__path__ = (
-      [_module_util.get_parent_dir(keras)] + _current_module.__path__)
+  _current_module.__path__.append(_module_util.get_parent_dir(keras))
 except ImportError:
   pass