diff --git a/ch12/1/go.mod b/ch12/1/go.mod
new file mode 100644
index 0000000..17b8737
--- /dev/null
+++ b/ch12/1/go.mod
@@ -0,0 +1,3 @@
+module gitea.local.lab/Lbenedar/learning_go/ch12/1
+
+go 1.25.0