diff --git a/services/scripts/run_performance_tests.sh b/services/scripts/run_performance_tests.sh
index 48ab76e96..a53730c12 100755
--- a/services/scripts/run_performance_tests.sh
+++ b/services/scripts/run_performance_tests.sh
@@ -1,53 +1,54 @@
 #!/usr/bin/env bash
 
 set -e
 
 SERVICES=$(./scripts/list_services.sh)
 
 run_performance_test () {
   echo "performance tests tests will be run for the $1 service"
   # add  -- --nocapture in the end to enable logs
   cargo test "$1"_performance_test --test '*' --manifest-path=commtest/Cargo.toml #-- --nocapture
 }
 
 help () {
   echo "Usage:";
   echo "There are two arguments you can specify";
   echo "First is a target service:";
   echo "$SERVICES";
   echo "all";
   echo "Second is a number of threads that you'd like to spawn.";
   echo "It is optional, if not specified, it will fall back to a default value";
   echo "The default value is the number of CPUs";
 }
 
 if [[ -z "$1" ]]; then
   echo "No service specified" >&2
   help;
   exit 1
 fi
 
 export COMM_NUMBER_OF_THREADS="$2"
 
 if [[ "$1" == "all" ]]; then
-  for SERVICE in "$SERVICES"; do
+  for SERVICE in $SERVICES; do
     run_performance_test "$SERVICE"
   done
   exit 0;
 fi;
 
 SERVICE=$(grep "$1" <<< "$SERVICES")
 
 if [[ "$SERVICE" != "$1" ]]; then
   echo "No such service: $1";
   help;
   exit 1;
 fi;
 
 SCRIPT_DIR=$(cd "$(dirname "$0")"; pwd -P)
 
 set -o allexport
+# shellcheck source=/dev/null
 source "$SCRIPT_DIR/../.env"
 set +o allexport
 
 run_performance_test "$SERVICE"