diff --git a/docs/source/conf.py b/docs/source/conf.py
index a97f5e03b1..668ef4c8ae 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -17,6 +17,7 @@
 import subprocess
 
 from recommonmark.parser import CommonMarkParser
+import sphinx_rtd_theme
 
 # import sys
 # sys.path.insert(0, os.path.abspath('.'))
@@ -58,8 +59,6 @@
                 shell=True)
 
 if not on_rtd:
-    import sphinx_rtd_theme
-    html_theme = "sphinx_rtd_theme"
     html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -117,7 +116,9 @@
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-# html_theme = 'alabaster'
+html_theme = 'sphinx_rtd_theme'
+
+numfig = True
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the