diff --git a/startup.sh b/startup.sh
index 6414458..bfe948e 100755
--- a/startup.sh
+++ b/startup.sh
@@ -46,7 +46,7 @@ EOF
 fi
 
 # Load configuration file
-if [ -f "config.sh" ] && source "config.sh"
+[[ -f "config.sh" ]] && source "config.sh"
 
 # Process configuration changes
 # -> Flow control