diff --git a/.arkindex.yml b/.arkindex.yml
index a8dad8fd682623a542479e5346b05059500bec97..76f398dabdbde22312ec022b414b7ad285ac510d 100644
--- a/.arkindex.yml
+++ b/.arkindex.yml
@@ -7,6 +7,7 @@ workers:
     type: extractor
     docker:
       build: Dockerfile
+      command: worker-init-elements
     user_configuration:
       chunks_number:
         title: Number of chunks to split workflow into after initialisation
diff --git a/Dockerfile b/Dockerfile
index 0d031946ccfa6dc547a0630afcf53e4774438285..2fecb17d62da0b0791cd8c609185b3939635e41c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,5 +14,3 @@ RUN pip install . --no-cache-dir
 # Add archi local CA
 RUN curl https://assets.teklia.com/teklia_dev_ca.pem > /usr/local/share/ca-certificates/arkindex-dev.crt && update-ca-certificates
 ENV REQUESTS_CA_BUNDLE /etc/ssl/certs/ca-certificates.crt
-
-CMD ["worker-init-elements"]