diff --git a/make/rules.mk b/make/rules.mk
index fb2ee931..9418f6d3 100644
--- a/make/rules.mk
+++ b/make/rules.mk
@@ -155,6 +155,9 @@ echo-modules:
 echo-include:
 	@echo "INCLUDE          : $(INCLUDE)"
 
+echo-mk:
+	@echo MAKEFILE_LIST = $(MAKEFILE_LIST)
+
 echo-contrib:
 
 trace-marks: