diff --git a/storage-benchmark.sbatch b/storage-benchmark.sbatch
index 35ad96f102da80068c431d5bd27440ddc60825ed..b4023b4cf73a75d47ab43f19abe7a2f586e09443 100644
--- a/storage-benchmark.sbatch
+++ b/storage-benchmark.sbatch
@@ -34,7 +34,7 @@ if [ -z "$DIRECTORY" ]
 then usage
 fi
 
-mkdir -p $DIRECTORY
+mkdir -p "$DIRECTORY"
 
 NNODES=$SLURM_NNODES
 THREADS=$SLURM_CPUS_PER_TASK