diff --git a/lms/djangoapps/mobile_api/course_info/constants.py b/lms/djangoapps/mobile_api/course_info/constants.py
index 67f26ca78ff1..d62cb463951a 100644
--- a/lms/djangoapps/mobile_api/course_info/constants.py
+++ b/lms/djangoapps/mobile_api/course_info/constants.py
@@ -1 +1,5 @@
+"""
+Common constants for the `course_info` API.
+"""
+
 BLOCK_STRUCTURE_CACHE_TIMEOUT = 60 * 60  # 1 hour
diff --git a/lms/djangoapps/mobile_api/course_info/utils.py b/lms/djangoapps/mobile_api/course_info/utils.py
index 5af34c459d2b..b86361223275 100644
--- a/lms/djangoapps/mobile_api/course_info/utils.py
+++ b/lms/djangoapps/mobile_api/course_info/utils.py
@@ -1,3 +1,7 @@
+"""
+Common utils for the `course_info` API.
+"""
+
 from django.core.cache import cache
 
 from lms.djangoapps.courseware.access import has_access