diff --git a/tutorial/t8.geo b/tutorial/t8.geo
index 7e3ad422a6b1aa8badccda579d21f6cd2d7142db..8ca8229c52334d2e46a41507d1d0bd36199e65cb 100644
--- a/tutorial/t8.geo
+++ b/tutorial/t8.geo
@@ -120,13 +120,13 @@ For num In {1:255}
     // We could make a system call here to generate the mpeg animation
     // (uncomment the following if mpeg_encode is installed on your
     // computer):
-    // System "mpeg_encode t8.par" ;
+    // System "mpeg_encode t8.par";
 
     // We could also call whirlgif to create an animated gif file:
-    // System "whirlgif -minimize -loop -o t8.gif t8-*.gif" ;
+    // System "whirlgif -minimize -loop -o t8.gif t8-*.gif";
 
     // Or, we could call mencoder to create an mpeg4 movie:
-    // mencoder "mf://*.jpg" -mf fps=5 -o t8.avi -ovc lavc vcoldec=mpeg4:vhq
+    // System "mencoder 'mf://*.jpg' -mf fps=5 -o t8.mpg -ovc lavc vcoldec=mpeg4:vhq";
   EndIf
 
 EndFor