diff --git a/pi/edit_dockerfile.sh b/pi/edit_dockerfile.sh
index cf591da..b48e8e7 100644
--- a/pi/edit_dockerfile.sh
+++ b/pi/edit_dockerfile.sh
@@ -23,6 +23,10 @@ PI_EXISTING_TAG=$(grep "${DOCKER_REGISTRY}/${PARENT_IMAGE_NAME}:" $DOCKERFILE |
 PI_EXISTING_IMAGE="${DOCKER_REGISTRY}/${PARENT_IMAGE_NAME}:${PI_EXISTING_TAG}"
 PI_NEW_IMAGE="${DOCKER_REGISTRY}/${PARENT_IMAGE_NAME}:${RELEASE_TAG}-${PARENT_IMAGE_TYPE}"
 
+echo "PI_EXISTING_TAG = $PI_EXISTING_TAG"
+echo "PI_EXISTING_IMAGE = $PI_EXISTING_IMAGE"
+echo "PI_NEW_IMAGE = $PI_NEW_IMAGE"
+
 echo "Dockerfile before update:"
 cat ${DOCKERFILE}
 sed 's|'${PI_EXISTING_IMAGE}'|'${PI_NEW_IMAGE}'|g' ${DOCKERFILE} > ${DOCKERFILE}.tmp && mv ${DOCKERFILE}.tmp ${DOCKERFILE}