diff --git a/doc/manual_base.lyx b/doc/manual_base.lyx
index eace11e..ff6f47a 100644
--- a/doc/manual_base.lyx
+++ b/doc/manual_base.lyx
@@ -2299,7 +2299,7 @@ IPython comes with some pre-defined aliases and a complete system for changing
 \family default 
  and 
 \family typewriter 
-%ds
+%dhist
 \family default 
 ) and via direct 
 \family typewriter