diff --git a/stack.sh b/stack.sh
index 9aa770f..4b8552c 100755
--- a/stack.sh
+++ b/stack.sh
@@ -1407,6 +1407,9 @@
 # Phase: test-config
 run_phase stack test-config
 
+# Apply late configuration from ``local.conf`` if it exists for layer 2 services
+# Phase: test-config
+merge_config_group $TOP_DIR/local.conf test-config
 
 # Fin
 # ===