diff --git a/doc/Makefile b/doc/Makefile
index 5a4746e4..4ecfe0cb 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,12 +1,13 @@
 # Minimal makefile for Sphinx documentation
 
+.DEFAULT_GOAL := help
+
 # You can set these variables from the command line.
 SPHINXOPTS    =
 SPHINXBUILD   = sphinx-build
 SOURCEDIR     = .
 BUILDDIR      = _build
 
-# Put it first so that "make" without argument is like "make help".
 help:
 	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)