diff --git a/postfix.sh b/postfix.sh
index 5f54b94..756b511 100755
--- a/postfix.sh
+++ b/postfix.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 SOURCE_DIR=$(realpath $(dirname "${0}"))/postfix
+
 # Build Docker container
 docker build -t postfix ${SOURCE_DIR}