diff --git a/docs/Makefile b/docs/Makefile
index cef2e832..54f10a49 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -1,6 +1,6 @@
 # Makefile for Sphinx documentation
 SPHINXOPTS    =
-SPHINXBUILD   = sphinx-build2
+SPHINXBUILD   = sphinx-build
 PAPER         =
 BUILDDIR      = _build