diff --git a/doc/Guidebook.tex b/doc/Guidebook.tex
index 31545dde8..5eb1467ac 100644
--- a/doc/Guidebook.tex
+++ b/doc/Guidebook.tex
@@ -865,7 +865,7 @@ There are four categories of object filtering: class (`{\tt !}' for
 potions, `{\tt ?}' for scrolls, and so on), shop status (`{\tt u}' for
 unpaid, in other words, owned by the shop), bless/curse state
 (`{\tt B}', `{\tt U}', `{\tt C}', and `{\tt X}' as shown above),
-and novelty (`{\tt P, recently picked up items; controlled by picking
+and novelty (`{\tt P}', recently picked up items; controlled by picking
 up or dropping things rather than by any time factor).
 %.lp ""
 \\