diff --git a/.flake8 b/.flake8
new file mode 100644
index 00000000000..35a2d7e98b5
--- /dev/null
+++ b/.flake8
@@ -0,0 +1,2 @@
+[flake8]
+max-line-length: 128
diff --git a/docs/guide/generate_objects_doc.py b/docs/guide/generate_objects_doc.py
index 85efed72aed..6b1a0ec0002 100755
--- a/docs/guide/generate_objects_doc.py
+++ b/docs/guide/generate_objects_doc.py
@@ -128,7 +128,7 @@
                 imagePath = 'images/%s/%s.png' % (category, protoName)
             if os.path.exists(imagePath):
                 os.remove(imagePath)
-            thumbnailPath =  imagePath.replace('.png', '.thumbnail.png')
+            thumbnailPath = imagePath.replace('.png', '.thumbnail.png')
             if os.path.exists(thumbnailPath):
                 os.remove(thumbnailPath)
             continue