diff --git a/DO_NOT_MERGE.SINGLE_COURSE b/DO_NOT_MERGE.SINGLE_COURSE
new file mode 100644
index 000000000..cb8b60c07
--- /dev/null
+++ b/DO_NOT_MERGE.SINGLE_COURSE
@@ -0,0 +1 @@
+fundamentals_of_ada/advanced.txt
diff --git a/courses/fundamentals_of_ada/advanced.txt b/courses/fundamentals_of_ada/advanced.txt
index 9f3c81732..36722c0f2 100644
--- a/courses/fundamentals_of_ada/advanced.txt
+++ b/courses/fundamentals_of_ada/advanced.txt
@@ -7,12 +7,12 @@ adv_075_primitives.rst
 120_limited_types.rst
 adv_120_advanced_privacy.rst
 140_access_types-advanced.rst
+adv_260_controlled_types.rst
 160_genericity.rst
 170_tagged_derivation.rst
-adv_170_multiple_inheritance.rst
 180_polymorphism.rst
+adv_170_multiple_inheritance.rst
 190_exceptions-in_depth.rst
 240_tasking_in_depth.rst
 273_subprogram_contracts.rst
 276_type_contracts.rst
-adv_280_low_level_programming.rst