diff --git a/Makefile b/Makefile
index 07dca0b..951e5b9 100644
--- a/Makefile
+++ b/Makefile
@@ -73,6 +73,8 @@ clean:
 	rm -rf build dist src/*.egg-info
 	# PyInstaller created files
 	rm -rf *.spec
+	# Documentation builds
+	rm -rf docs/_build
 
 distclean: clean
 	# Virtual environment