diff --git a/src/doc/conf.py b/src/doc/conf.py
index 8a9b4ad48ccd5a232928162c000823350f64222a..b8f00c81a950141f5bc04aa4f2fe73642f83a627 100644
--- a/src/doc/conf.py
+++ b/src/doc/conf.py
@@ -29,7 +29,7 @@ version = '0.X.Y'
 release = '0.x.y-beta-rc2'
 
 
-import sphinx-rtd-theme
+import sphinx_rtd_theme
 
 # -- General configuration ---------------------------------------------------
 
@@ -45,7 +45,7 @@ extensions = [
     'sphinx.ext.intersphinx',
     'sphinx.ext.napoleon',     # For Google style docstrings
     "recommonmark",            # For markdown files.
-    "sphinx-rtd-theme",
+    "sphinx_rtd_theme",
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -85,7 +85,7 @@ pygments_style = None
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = "sphinx-rtd-theme"
+html_theme = "sphinx_rtd_theme"
 
 # 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