diff --git a/docs/Makefile b/docs/Makefile
index 27d2ac74a8..152ee94ce8 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -2,7 +2,7 @@
 #
 
 # You can set these variables from the command line.
-SPHINXOPTS           = -W -n
+SPHINXOPTS           = -n
 SPHINXBUILD          = sphinx-build
 PAPER                =
 BUILDDIR             = _build