diff --git a/rclcpp/cmake/rclcpp_create_node_main.cmake b/rclcpp/cmake/rclcpp_create_node_main.cmake
new file mode 100644
index 0000000..3d77516
--- /dev/null
+++ b/rclcpp/cmake/rclcpp_create_node_main.cmake
@@ -0,0 +1,28 @@
+# Copyright 2015 Open Source Robotics Foundation, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# copied from rclcpp/rclcpp-extras.cmake
+
+
+set(rclcpp_node_main_SRC "${rclcpp_DIR}/../../../src/rclcpp/node_main.cpp")
+
+function(rclcpp_create_node_main node_library_target)
+  if(NOT TARGET ${node_library_target})
+    message(FATAL_ERROR "rclcpp_create_node_main() the first argument must be a valid target name")
+  endif()
+  set(executable_name_ ${node_library_target}_node)
+  add_executable(${executable_name_} ${rclcpp_node_main_SRC})
+  target_link_libraries(${executable_name_} ${node_library_target})
+  install(TARGETS ${executable_name_} DESTINATION bin)
+endfunction()
diff --git a/rclcpp/rclcpp-extras.cmake b/rclcpp/rclcpp-extras.cmake
index 7ecfec8..e237b62 100644
--- a/rclcpp/rclcpp-extras.cmake
+++ b/rclcpp/rclcpp-extras.cmake
@@ -15,15 +15,4 @@
 # copied from rclcpp/rclcpp-extras.cmake
 
 include("${rclcpp_DIR}/get_rclcpp_information.cmake")
-
-set(rclcpp_node_main_SRC "${rclcpp_DIR}/../../../src/rclcpp/node_main.cpp")
-
-function(rclcpp_create_node_main node_library_target)
-  if(NOT TARGET ${node_library_target})
-    message(FATAL_ERROR "rclcpp_create_node_main() the first argument must be a valid target name")
-  endif()
-  set(executable_name_ ${node_library_target}_node)
-  add_executable(${executable_name_} ${rclcpp_node_main_SRC})
-  target_link_libraries(${executable_name_} ${node_library_target})
-  install(TARGETS ${executable_name_} DESTINATION bin)
-endfunction()
+include("${rclcpp_DIR}/rclcpp_create_node_main.cmake")