diff --git a/data_from_portwine/scripts/functions_helper b/data_from_portwine/scripts/functions_helper
index 36a5cc46..d0721cea 100755
--- a/data_from_portwine/scripts/functions_helper
+++ b/data_from_portwine/scripts/functions_helper
@@ -532,7 +532,7 @@ pw_mangohud_check () {
 
 pw_vkbasalt_check () {
     if [[ "${ENABLE_VKBASALT}" == 1 ]] && [[ "${PW_VULKAN_USE}" != "0" ]] && [[ "${PW_VULKAN_USE}" != "3" ]] ; then
-        if [ ! -z "${PW_VKBASALT_EFFECTS}" ] && [ ! -z "${PW_VKBASALT_FFX_CAS}" ]; then
+        if [[ ! -z "${PW_VKBASALT_EFFECTS}" ]] && [[ ! -z "${PW_VKBASALT_FFX_CAS}" ]] ; then
             export VKBASALT_CONFIG_FILE="${PORT_WINE_PATH}/data/vkBasalt.conf"
             sed -ri "s/effects = .*/effects = ${PW_VKBASALT_EFFECTS}/g" "${VKBASALT_CONFIG_FILE}"
             sed -ri "s/casSharpness .*/casSharpness = ${PW_VKBASALT_FFX_CAS}/g" "${VKBASALT_CONFIG_FILE}"