diff --git a/docs/source/conf.py b/docs/source/conf.py
index 2ff4db2c..9d5a34bb 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -222,6 +222,7 @@ autodoc_mock_imports = ['googlesamples.assistant.grpc.audio_helpers',
                         'grpc',
                         'envirophat',
                         'gps',
+                        'picamera',
                         ]
 
 sys.path.insert(0, os.path.abspath('../..'))