diff --git a/postgres-backup/app/includes.sh b/postgres-backup/app/includes.sh
index 2535555..b2d9f3e 100644
--- a/postgres-backup/app/includes.sh
+++ b/postgres-backup/app/includes.sh
@@ -128,7 +128,7 @@ function init_env() {
   # TIMEZONE
   get_env TIMEZONE
   local TIMEZONE_MATCHED_COUNT
-  TIMEZONE_MATCHED_COUNT=$(find -type f -iname "/usr/share/zoneinfo/${TIMEZONE}" 2> /dev/null | wc -l)
+  TIMEZONE_MATCHED_COUNT=$(find "/usr/share/zoneinfo" -type f -iname "${TIMEZONE}" 2> /dev/null | wc -l)
   if [[ "${TIMEZONE_MATCHED_COUNT}" -ne 1 ]]; then
     TIMEZONE="UTC"
   fi