diff --git a/doc/source/conf.py b/doc/source/conf.py
index 364bab08ce878d822be436ce3bddc20d15ee0fa3..f8da46a0827086ca963f135f126b9a63bfadd14f 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -38,7 +38,7 @@ extensions = [
     'sphinx.ext.coverage',
     'sphinx.ext.mathjax',
     'numpydoc',
-    'recommonmark'
+    'recommonmark',
     'linuxdoc.rstFlatTable',
 ]