diff --git a/Makefile b/Makefile
index 77c2ecb..0a91594 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ help:
 	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
 
 live:
-	sphinx-autobuild -p 8001 -b html $(SPHINXOPTS) $(SOURCEDIR) $(BUILDDIR)/html
+	sphinx-autobuild --port 8001 -b html $(SPHINXOPTS) $(SOURCEDIR) $(BUILDDIR)/html
 
 .PHONY: help livehtml livehtml Makefile