diff --git a/doc/training/start-app.sh b/doc/training/start-app.sh
index 9e6b6da..ba83969 100755
--- a/doc/training/start-app.sh
+++ b/doc/training/start-app.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-base_path=$(dirname "$(readlink -f "${0}")")
+base_path=$(dirname "$(greadlink -f "${0}")")
 
 ################################################################################
 # set app_file