diff --git a/action.yaml b/action.yaml
index 6a39d1c..784a9b4 100644
--- a/action.yaml
+++ b/action.yaml
@@ -59,6 +59,10 @@ inputs:
   install-java:
     description: 'install java on splunk instance'
     default: 'No'
+  sc4s-docker-registry:
+    description: 'Docker registry from which sc4s images will be pulled'
+    required: false
+    default: ''
 
 outputs:
   workflow-name: # id of output
@@ -80,4 +84,5 @@ runs:
     - ${{ inputs.vendor-version }}
     - ${{ inputs.sc4s-version }}
     - ${{ inputs.install-java }}
+    - ${{ inputs.sc4s-docker-registry }}
 
diff --git a/entrypoint.sh b/entrypoint.sh
index c18475a..03a7704 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -36,6 +36,7 @@ WORKFLOW_NAME=`argo submit -v -o json --from wftmpl/${1} -n ${2} -l workflows.ar
     -p vendor-version=${11}\
     -p sc4s-version=${12} \
     -p install-java=${13} \
+    -p sc4s-docker-registry=${14} \
     -l="${9},test-type=${7},splunk-version=${6}" | jq -r .metadata.name`
 
 echo "After argo submit $?"