diff --git a/env-hooks/99.hero_functions.bash b/env-hooks/99.hero_functions.bash
index 44e4065d..78d28ce8 100644
--- a/env-hooks/99.hero_functions.bash
+++ b/env-hooks/99.hero_functions.bash
@@ -7,7 +7,8 @@ install_services_cmd=""
 for launch_file in ${launch_files}; do
     launch_file_name=$(echo ${launch_file##*/} | cut -d"." -f1)
     name=${bringup_name//_/-}-${launch_file_name//_/-}
-    if [[ $launch_file == *"state_machines"* ]]; then
+    if [[ $launch_file == *"state_machines"* ]]
+    then
         eval "${name}() { export ROBOT_BRINGUP_PATH=${package_path} && rosnode kill /state_machine; roslaunch ${launch_file} \$@; }"
     else
         eval "${name}() { export ROBOT_BRINGUP_PATH=${package_path} && roslaunch ${launch_file} \$@; }"
@@ -17,3 +18,4 @@ for launch_file in ${launch_files}; do
 done
 
 eval "${bringup_name}-install-services() { echo 'Installing systemd services for ${bringup_name} ...' $install_services_cmd; }"
+unset install_services_cmd