diff --git a/ci/scripts/deterministic-it-test.sh b/ci/scripts/deterministic-it-test.sh
index 0cdadf017fc60..1c43bd3faae97 100755
--- a/ci/scripts/deterministic-it-test.sh
+++ b/ci/scripts/deterministic-it-test.sh
@@ -19,9 +19,9 @@ mv target/ci-sim target/sim
 TEST_PATTERN="$@"
 
 echo "--- Run integration tests in deterministic simulation mode"
-seq $TEST_NUM | parallel MADSIM_TEST_SEED={} NEXTEST_PROFILE=ci-sim \
- 'cargo nextest run \
+seq $TEST_NUM | parallel "MADSIM_TEST_SEED={} NEXTEST_PROFILE=ci-sim \
+ cargo nextest run \
  --no-fail-fast \
  --cargo-metadata target/nextest/cargo-metadata.json \
  --binaries-metadata target/nextest/binaries-metadata.json \
- "$TEST_PATTERN" 1>$LOGDIR/deterministic-it-test-{}.log 2>&1 && rm $LOGDIR/deterministic-it-test-{}.log'
+ $TEST_PATTERN 1>$LOGDIR/deterministic-it-test-{}.log 2>&1 && rm $LOGDIR/deterministic-it-test-{}.log"