diff --git a/python/sphinx_docs/src/opm_simulators_docs/sphinx_ext_docstrings.py b/python/sphinx_docs/src/opm_simulators_docs/sphinx_ext_docstrings.py
index e9517719481..32418f13d5a 100644
--- a/python/sphinx_docs/src/opm_simulators_docs/sphinx_ext_docstrings.py
+++ b/python/sphinx_docs/src/opm_simulators_docs/sphinx_ext_docstrings.py
@@ -4,7 +4,7 @@
 from sphinx.util.docutils import SphinxDirective
 from docutils import nodes
 
-def readDocStrings(directive, docstrings_path):
+def read_doc_strings(directive, docstrings_path):
     print(docstrings_path)
     with open(docstrings_path, 'r') as file:
         docstrings = json.load(file)
@@ -42,7 +42,7 @@ class SimulatorsDirective(SphinxDirective):
     option_spec = {}
 
     def run(self):
-        return readDocStrings(self, self.state.document.settings.env.app.config.opm_simulators_docstrings_path)
+        return read_doc_strings(self, self.state.document.settings.env.app.config.opm_simulators_docstrings_path)
 
 class CommonDirective(SphinxDirective):
     required_arguments = 0
@@ -51,7 +51,7 @@ class CommonDirective(SphinxDirective):
     option_spec = {}
 
     def run(self):
-        return readDocStrings(self, self.state.document.settings.env.app.config.opm_common_docstrings_path)
+        return read_doc_strings(self, self.state.document.settings.env.app.config.opm_common_docstrings_path)
 
 def setup(app):
     app.add_config_value('opm_simulators_docstrings_path', None, 'env')