diff --git a/contrib/slurm/slurmexecutor.py b/contrib/slurm/slurmexecutor.py
index 79e3953b4..1ad4f8cb7 100644
--- a/contrib/slurm/slurmexecutor.py
+++ b/contrib/slurm/slurmexecutor.py
@@ -9,7 +9,6 @@
 import os
 import queue
 import re
-import shutil
 import subprocess
 import sys
 import tempfile
@@ -230,7 +229,7 @@ def run_slurm(benchmark, args, log_file, timelimit, cpus, memory):
             f"singularity exec "
             f"-B $PWD:/lower --no-home "
             f"-B {tempdir}:/overlay "
-            f"--fusemount \"container:fuse-overlayfs -o lowerdir=/lower -o upperdir=/overlay/upper -o workdir=/overlay/work $HOME\" "
+            f'--fusemount "container:fuse-overlayfs -o lowerdir=/lower -o upperdir=/overlay/upper -o workdir=/overlay/work $HOME" '
             f"{benchmark.config.singularity} {tool_command}"
             if benchmark.config.singularity
             else tool_command