diff --git a/rosidl_generator_py/cmake/rosidl_generator_py_generate_interfaces.cmake b/rosidl_generator_py/cmake/rosidl_generator_py_generate_interfaces.cmake
index da7787eb..18f8378d 100644
--- a/rosidl_generator_py/cmake/rosidl_generator_py_generate_interfaces.cmake
+++ b/rosidl_generator_py/cmake/rosidl_generator_py_generate_interfaces.cmake
@@ -173,6 +173,8 @@ endmacro()
 
 set(_target_name_lib "${rosidl_generate_interfaces_TARGET}__python")
 add_library(${_target_name_lib} SHARED ${_generated_c_files})
+target_link_libraries(${_target_name_lib}
+  ${rosidl_generate_interfaces_TARGET}__rosidl_generator_c)
 add_dependencies(
   ${_target_name_lib}
   ${rosidl_generate_interfaces_TARGET}${_target_suffix}
diff --git a/rosidl_generator_py/resource/_msg_support.c.em b/rosidl_generator_py/resource/_msg_support.c.em
index 94e89bff..c4709de4 100644
--- a/rosidl_generator_py/resource/_msg_support.c.em
+++ b/rosidl_generator_py/resource/_msg_support.c.em
@@ -1,4 +1,4 @@
-@# Included from rosidl_generator_py/resource/_idl.py.em
+@# Included from rosidl_generator_py/resource/_idl_support.c.em
 #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
 @{
 from rosidl_cmake import convert_camel_case_to_lower_case_underscore