diff --git a/launch/doc/source/conf.py b/launch/doc/source/conf.py
index a6888dc66..81d9ce31c 100644
--- a/launch/doc/source/conf.py
+++ b/launch/doc/source/conf.py
@@ -35,7 +35,7 @@
 # with the same name of this package within the docs_build directory.
 # Hence we add the parent folder to the system path so that the modules from
 # this package can be imported.
-sys.path.insert(0, os.path.abspath('.'))
+sys.path.insert(0, os.path.abspath(os.path.join('..', '..', '..', '..', 'launch')))
 
 
 # -- Project information -----------------------------------------------------
@@ -91,13 +91,6 @@
 # The master toctree document.
 master_doc = 'index'
 
-# The language for content autogenerated by Sphinx. Refer to documentation
-# for a list of supported languages.
-#
-# This is also used if you do content translation via gettext catalogs.
-# Usually you set "language" from the command line for these cases.
-language = None
-
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 # This pattern also affects html_static_path and html_extra_path.
@@ -199,7 +192,7 @@
 # -- Options for intersphinx extension ---------------------------------------
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {'https://docs.python.org/': None}
+intersphinx_mapping = {'python': ('https://docs.python.org/3', None)}
 
 # -- Options for todo extension ----------------------------------------------