diff --git a/docs/Makefile b/docs/Makefile
index 748dd61c9e..92780c2e48 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -3,6 +3,7 @@
 SOURCEDIR     = source
 BUILDDIR      = build
 AUTODOCDIR = $(SOURCEDIR)/api
+
 # You can set these variables from the command line, and also
 # from the environment for the first two.
 SPHINXOPTS    ?=