diff --git a/Makefile b/Makefile
index 1ee4ca873d4ed8a3db49d132f1887e1c8563c85c..1b946107df04469fe748a3246e1e85c0c3303d46 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
-M_DESCRIPTION="This provides some additional tools for makefiles."
-M_LICENSE="Released under the BSD two-clause license, see the LICENSE file for more information."
+MK_DESCRIPTION="This provides some additional tools for makefiles."
+MK_LICENSE="Released under the BSD two-clause license, see the LICENSE file for more information."
 
 include makext.mk
 
diff --git a/makext.mk b/makext.mk
index 613514eaea0a1fdb5fcd40246b8a45d42b7ebdac..cf25906037595e43dbf6302c7e1f6523acad8d9f 100644
--- a/makext.mk
+++ b/makext.mk
@@ -13,11 +13,11 @@ # Visit the GitHub repository at https://github.com/mitjafelicijan/makext
 # to learn more and contribute to the project.
 
 .help:
-ifdef M_DESCRIPTION
-	@echo "$(M_DESCRIPTION)\n" | fmt
+ifdef MK_DESCRIPTION
+	@echo "$(MK_DESCRIPTION)\n" | fmt
 endif
 	@echo "Targets:"
-	@grep '^.*:.* #' Makefile | sed -E 's/(.*):.*#(.*)/ \1###\2/' | column -t -s '###'
-ifdef M_LICENSE
-	@echo "\n$(M_LICENSE)" | fmt
+	@grep -vE '^[[:space:]]' $(MAKEFILE_LIST) | grep -E '^.*:.* #' | sed -E 's/(.*):.*#(.*)/  \1###\2/' | column -t -s '###'
+ifdef MK_LICENSE
+	@echo "\n$(MK_LICENSE)" | fmt
 endif