diff --git a/examples/script_that_sometimes_fails.sh b/examples/script_that_sometimes_fails.sh
index e344ab5..fad09e3 100755
--- a/examples/script_that_sometimes_fails.sh
+++ b/examples/script_that_sometimes_fails.sh
@@ -18,7 +18,7 @@ prng () {
     m=$SLURM_NTASKS
     # Recur as many times as the task id to generate different numbers
     # for each SLURM task.
-    for _ in 1..$SLURM_PROCID
+    for _ in {1..$SLURM_PROCID}
     do
 	x_n=$(( $(( a * $((x_n + b)) )) % m))
     done