diff --git a/doc/source/conf.py b/doc/source/conf.py
index 9c28b3f331..b7f4a7d34e 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -67,13 +67,6 @@ add_module_names = True
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'sphinx'
 
-# NOTE(cinerama): mock out nova modules so docs can build without warnings
-import mock
-import sys
-MOCK_MODULES = ['nova', 'nova.compute', 'nova.context']
-for module in MOCK_MODULES:
-    sys.modules[module] = mock.Mock()
-
 # A list of glob-style patterns that should be excluded when looking for
 # source files. They are matched against the source file names relative to the
 # source directory, using slashes as directory separators on all platforms.