diff --git a/doc/manual/conf.py b/doc/manual/conf.py
index 6f9b76777..a02b2c9f8 100644
--- a/doc/manual/conf.py
+++ b/doc/manual/conf.py
@@ -35,7 +35,7 @@ mock_modules = ["artiq.gui.waitingspinnerwidget",
                 "quamash", "pyqtgraph", "matplotlib",
                 "numpy", "dateutil", "dateutil.parser", "prettytable", "PyQt5",
                 "h5py", "serial", "scipy", "scipy.interpolate",
-                "llvmlite_artiq", "Levenshtein", "pythonparser"]
+                "llvmlite_artiq", "Levenshtein", "pythonparser", "sipyco"]
 
 for module in mock_modules:
     sys.modules[module] = Mock()