diff --git a/src/Makefile b/src/Makefile
index 7d3f85f4021db0308381dc08b957796ce02003fd..ac0a89deae9433ae0fcfa483a34b4379f3c33a96 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,20 +1,16 @@
-# Minimal makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line.
 SPHINXOPTS    =
 SPHINXBUILD   = sphinx-build
 SPHINXPROJ    = Test
 SOURCEDIR     = source
 BUILDDIR      = build
 
-# Put it first so that "make" without argument is like "make help".
 help:
 	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
 
-.PHONY: help Makefile
+.PHONY: help Makefile clean
 
-# Catch-all target: route all unknown targets to Sphinx using the new
-# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
 %: Makefile
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
\ No newline at end of file
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+clean:
+	rm -rf build