diff --git a/custom_dc/build_image.md b/custom_dc/build_image.md
index d46e141eb..df3fec9dd 100644
--- a/custom_dc/build_image.md
+++ b/custom_dc/build_image.md
@@ -35,7 +35,8 @@ If you want to pick up the latest prebuilt version, do the following:
    -p 8080:8080 \
    -e DEBUG=true \
    --env-file $PWD/custom_dc/env.list \
-   -v $PWD/custom_dc/sample:$PWD/custom_dc/sample \
+   -v <var>INPUT_DIRECTORY</var>:<var>INPUT_DIRECTORY</var> \
+   -v <var>OUTPUT_DIRECTORY</var>:<var>OUTPUT_DIRECTORY</var> \
    gcr.io/datcom-ci/datacommons-services:latest
    ```
 
diff --git a/custom_dc/custom_data.md b/custom_dc/custom_data.md
index b42e3e6f2..1aae67ef1 100644
--- a/custom_dc/custom_data.md
+++ b/custom_dc/custom_data.md
@@ -263,6 +263,7 @@ In one terminal window, from the root directory, run the following command to st
 docker run \
 --env-file $PWD/custom_dc/env.list \ \
 -v <var>INPUT_DIRECTORY</var>:<var>INPUT_DIRECTORY</var> \
+-v <var>OUTPUT_DIRECTORY</var>:<var>OUTPUT_DIRECTORY</var> \
 gcr.io/datcom-ci/datacommons-data:stable
 </pre>
 
@@ -273,6 +274,7 @@ docker run -it \
 -p 8080:8080 \
 -e DEBUG=true \
 --env-file $PWD/custom_dc/env.list \
+-v <var>INPUT_DIRECTORY</var>:<var>INPUT_DIRECTORY</var> \
 -v <var>OUTPUT_DIRECTORY</var>:<var>OUTPUT_DIRECTORY</var> \
 gcr.io/datcom-ci/datacommons-services:stable
 </pre>
diff --git a/custom_dc/data_cloud.md b/custom_dc/data_cloud.md
index 9614b21a6..824fbdb3b 100644
--- a/custom_dc/data_cloud.md
+++ b/custom_dc/data_cloud.md
@@ -189,6 +189,7 @@ From your project root directory, run:
 docker run \
 --env-file $PWD/custom_dc/env.list \
 -v <var>INPUT_DIRECTORY</var>:<var>INPUT_DIRECTORY</var> \
+-v <var>OUTPUT_DIRECTORY</var>:<var>OUTPUT_DIRECTORY</var> \
 -e GOOGLE_APPLICATION_CREDENTIALS=/gcp/creds.json \
 -v $HOME/.config/gcloud/application_default_credentials.json:/gcp/creds.json:ro \
 gcr.io/datcom-ci/datacommons-data:<var>VERSION</var>
@@ -221,6 +222,7 @@ docker run -it \
 -e DEBUG=true \
 -e GOOGLE_APPLICATION_CREDENTIALS=/gcp/creds.json \
 -v $HOME/.config/gcloud/application_default_credentials.json:/gcp/creds.json:ro \
+-v <var>INPUT_DIRECTORY</var>:<var>INPUT_DIRECTORY</var> \
 -v <var>OUTPUT_DIRECTORY</var>:<var>OUTPUT_DIRECTORY</var> \
 [-v $PWD/server/templates/custom_dc/custom:/workspace/server/templates/custom_dc/custom \]
 [-v $PWD/static/custom_dc/custom:/workspace/static/custom_dc/custom \]