diff --git a/postgres-backup/app/includes.sh b/postgres-backup/app/includes.sh
index d68064f..b86abde 100644
--- a/postgres-backup/app/includes.sh
+++ b/postgres-backup/app/includes.sh
@@ -57,7 +57,7 @@ function export_env_file() {
   if [[ -f "${ENV_FILE}" ]]; then
     echo "find \"${ENV_FILE}\" file and export variables"
     set -a
-    source <(cat "${ENV_FILE}" | sed -e '/^#/d;/^\s*$/d' -e 's/\(\w*\)[ \t]*=[ \t]*\(.*\)/DOTENV_\1=\2/')
+    source <(sed -e '/^#/d;/^\s*$/d' -e 's/\(\w*\)[ \t]*=[ \t]*\(.*\)/DOTENV_\1=\2/' "${ENV_FILE}")
     set +a
   fi
 }