diff --git a/doc/pisi.lyx b/doc/pisi.lyx
index a020888c..8de7ba8f 100644
--- a/doc/pisi.lyx
+++ b/doc/pisi.lyx
@@ -3,7 +3,7 @@
 \textclass article
 \language turkish
 \inputencoding auto
-\fontscheme default
+\fontscheme pslatex
 \graphics default
 \paperfontsize default
 \spacing single