--- pyx-0.13.ebuild	2014-05-03 10:07:26.000000000 +0200
+++ pyx-0.13-r1.ebuild	2014-05-07 09:50:54.457974485 +0200
@@ -20,7 +20,10 @@
 
 RDEPEND="virtual/tex-base"
 DEPEND="${RDEPEND}
-	doc? ( virtual/latex-base )"
+	doc? ( 
+		virtual/latex-base 
+		dev-python/sphinx[latex]
+	)"
 
 S="${WORKDIR}/${MY_P}"