diff --git a/doc/make.bat b/doc/make.bat
index 702a84bb..a59efe01 100644
--- a/doc/make.bat
+++ b/doc/make.bat
@@ -6,7 +6,7 @@ if "%SPHINXBUILD%" == "" (
 	set SPHINXBUILD=sphinx-build
 )
 set BUILDDIR=_build
-set ALLSPHINXOPTS=-d %BUILDDIR%/doctrees %SPHINXOPTS% .
+set ALLSPHINXOPTS=-d %BUILDDIR%/doctrees %SPHINXOPTS% source
 if NOT "%PAPER%" == "" (
 	set ALLSPHINXOPTS=-D latex_paper_size=%PAPER% %ALLSPHINXOPTS%
 )