diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1e441ae86c56280dc1872d970861efe0074151f6..52e3b9b9dd3b1aa2c238bf8566aa7634bbf94a4d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -243,14 +243,17 @@ gcc_9_python_slurm_test:
 
   needs: ["gcc_9_python"]
 
+  rules:
+    - if: $PHOENIX_PRIVATE_KEY
+
   tags:
     - linux
     - privileged
 
   variables:
-    SSH_KEY: "$SSH_PRIVATE_KEY"
-    HOST: "phoenix.hlr.rz.tu-bs.de"
-    PHOENIX_USER: "y0054816"
+    SSH_KEY: "$PHOENIX_PRIVATE_KEY"
+    HOST: "$PHOENIX_HOSTNAME"
+    USER: "$PHOENIX_USER"
 
   before_script:
     - 'command -v ssh-agent >/dev/null || ( apt-get update -y && apt-get install openssh-client -y )'
@@ -261,19 +264,19 @@ gcc_9_python_slurm_test:
     - echo "$SSH_KEY" | tr -d '\r' | ssh-add -
     - echo $SSH_KEY >> ansible/private_key
     - ssh-keyscan -t rsa $HOST >> ~/.ssh/known_hosts
-    - ssh $PHOENIX_USER@$HOST "rm -rf output-*"
-    - ssh $PHOENIX_USER@$HOST "rm -f *.out"
+    - ssh $USER@$HOST "rm -rf output-*"
+    - ssh $USER@$HOST "rm -f *.out"
     - pip3 install git+git://github.com/SvenMarcus/ssh-slurm-runner
 
   script:
     - singularity build PoiseuilleTestContainer.sif Python/SlurmTests/poiseuille/PoiseuilleTestContainer.def
-    - scp PoiseuilleTestContainer.sif $PHOENIX_USER@$HOST:PoiseuilleTestContainer.sif
-    - scp Python/SlurmTests/poiseuille/slurm.job $PHOENIX_USER@$HOST:slurm.job
-    - python3 -m ssh_slurm_runner slurm.job --host $HOST --user $PHOENIX_USER --keyfile ansible/private_key
-    - ssh $PHOENIX_USER@$HOST "rm -rf output-*"
-    - ssh $PHOENIX_USER@$HOST "rm -f *.out"
-    - ssh $PHOENIX_USER@$HOST "rm PoiseuilleTestContainer.sif"
-    - ssh $PHOENIX_USER@$HOST "rm slurm.job"
+    - scp PoiseuilleTestContainer.sif $USER@$HOST:PoiseuilleTestContainer.sif
+    - scp Python/SlurmTests/poiseuille/slurm.job $USER@$HOST:slurm.job
+    - python3 -m ssh_slurm_runner slurm.job --host $HOST --user $USER --keyfile ansible/private_key
+    - ssh $USER@$HOST "rm -rf output-*"
+    - ssh $USER@$HOST "rm -f *.out"
+    - ssh $USER@$HOST "rm PoiseuilleTestContainer.sif"
+    - ssh $USER@$HOST "rm slurm.job"
 
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