diff --git a/docs/install/from_source.rst b/docs/install/from_source.rst
index 329ba219c13b..4e0f7cf6db40 100644
--- a/docs/install/from_source.rst
+++ b/docs/install/from_source.rst
@@ -163,7 +163,8 @@ Leaving the build environment ``tvm-build-venv``, there are two ways to install
 .. code-block:: bash
 
     export TVM_HOME=/path-to-tvm
-    export PYTHONPATH=$TVM_HOME/python:$PYTHONPATH
+    pip install $TVM_HOME/3rdparty/tvm-ffi
+    export PYTHONPATH=$TVM_HOME/python:$TVM_HOME/3rdparty/tvm-ffi/python:$PYTHONPATH
 
 - Install via pip local project