diff --git a/tutorial/3-2-develop-cth.md b/tutorial/3-2-develop-cth.md
index f13006fbdb6eaa20abbc8ee77e654350901cf9f8..983e862d7c5e0ba06583739f797062ff9b9b32fc 100644
--- a/tutorial/3-2-develop-cth.md
+++ b/tutorial/3-2-develop-cth.md
@@ -11,7 +11,8 @@
 # interesting Docker commands
 
 Build by hand:
-docker build -t "context:lgr-test" -f ./src/context/Dockerfile .
+cd src
+docker build -t "context:lgr-test" -f ./context/Dockerfile .
 
 Run by hand:
 docker run --rm --name lgr-test -it --env "DB_BACKEND=inmemory" --entrypoint /bin/bash context:lgr-test