diff --git a/docs/readthedocs/source/conf.py b/docs/readthedocs/source/conf.py
index 6939922a..2f44b320 100644
--- a/docs/readthedocs/source/conf.py
+++ b/docs/readthedocs/source/conf.py
@@ -21,6 +21,7 @@ import urllib
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 #sys.path.insert(0, '.')
 sys.path.insert(0, os.path.abspath('.'))
+sys.path.insert(0, os.path.abspath("../../../python/friesian/src/"))
 sys.path.insert(0, os.path.abspath("../../../python/chronos/src/"))
 sys.path.insert(0, os.path.abspath("../../../python/dllib/src/"))
 sys.path.insert(0, os.path.abspath("../../../python/orca/src/"))
diff --git a/docs/readthedocs/source/doc/PythonAPI/Friesian/feature.rst b/docs/readthedocs/source/doc/PythonAPI/Friesian/feature.rst
index dbf7fb55..b382d03a 100644
--- a/docs/readthedocs/source/doc/PythonAPI/Friesian/feature.rst
+++ b/docs/readthedocs/source/doc/PythonAPI/Friesian/feature.rst
@@ -4,7 +4,7 @@ Friesian Feature API
 friesian.feature.table
 ---------------------------
 
-.. automodule:: zoo.friesian.feature.table
+.. automodule:: bigdl.friesian.feature.table
     :members:
     :undoc-members:
     :show-inheritance:
diff --git a/docs/readthedocs/source/doc/PythonAPI/Orca/orca.rst b/docs/readthedocs/source/doc/PythonAPI/Orca/orca.rst
index 31b7591c..3458b724 100644
--- a/docs/readthedocs/source/doc/PythonAPI/Orca/orca.rst
+++ b/docs/readthedocs/source/doc/PythonAPI/Orca/orca.rst
@@ -4,7 +4,7 @@ Orca API
 orca.learn.bigdl.estimator
 ---------------------------
 
-.. automodule:: zoo.orca.learn.bigdl.estimator
+.. automodule:: bigdl.orca.learn.bigdl.estimator
     :members:
     :undoc-members:
     :show-inheritance:
@@ -13,7 +13,7 @@ orca.learn.bigdl.estimator
 orca.learn.tf.estimator
 ------------------------
 
-.. automodule:: zoo.orca.learn.tf.estimator
+.. automodule:: bigdl.orca.learn.tf.estimator
     :members:
     :undoc-members:
     :show-inheritance:
@@ -22,7 +22,7 @@ orca.learn.tf.estimator
 orca.learn.tf2.estimator
 -------------------------
 
-.. automodule:: zoo.orca.learn.tf2.estimator
+.. automodule:: bigdl.orca.learn.tf2.estimator
     :members:
     :undoc-members:
     :show-inheritance:
@@ -30,7 +30,7 @@ orca.learn.tf2.estimator
 orca.learn.pytorch.estimator
 -----------------------------
 
-.. automodule:: zoo.orca.learn.pytorch.estimator
+.. automodule:: bigdl.orca.learn.pytorch.estimator
     :members:
     :undoc-members:
     :show-inheritance:
@@ -38,7 +38,7 @@ orca.learn.pytorch.estimator
 orca.learn.openvino.estimator
 ------------------------------
 
-.. automodule:: zoo.orca.learn.openvino.estimator
+.. automodule:: bigdl.orca.learn.openvino.estimator
     :members:
     :undoc-members:
     :show-inheritance: