diff --git a/scripts/chapter5/main.sh b/scripts/chapter5/main.sh
index 8253cbb..ec04ef5 100644
--- a/scripts/chapter5/main.sh
+++ b/scripts/chapter5/main.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+PWD=$(pwd)
+
 # Exit on error
 # =============
 exit_status=0