diff --git a/doc/intro.sgml b/doc/intro.sgml
index e66a76167..e3fc25dfb 100644
--- a/doc/intro.sgml
+++ b/doc/intro.sgml
@@ -462,7 +462,7 @@ The tutorial files are different for GEOS.  You will find them "next door," in
 
 Compile the tutorial with
 <tscreen><verb>
-cl65 -O -t geos-cbm hello1.c hello1res.grc
+cl65 -t geos-cbm -O -o hello1 hello1res.grc hello1.c
 </verb></tscreen>
 Copy the resulting file "<tt/hello1/" onto a (GEOS-format) disk.