diff --git a/docs/Makefile b/docs/Makefile
index 3dd4e7fad13..387d531e5bc 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -8,13 +8,19 @@ SPHINXPROJ    = ctapipe
 SOURCEDIR     = .
 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
-
 # 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) $(O)
+
+clean:
+	rm -rf api
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+
+.PHONY: all help clean Makefile