diff --git a/Doc/lib/libweakref.tex b/Doc/lib/libweakref.tex
index 5e6e819..077e25c 100644
--- a/Doc/lib/libweakref.tex
+++ b/Doc/lib/libweakref.tex
@@ -62,7 +62,7 @@
   callable.  Proxy objects are not hashable regardless of the
   referent; this avoids a number of problems related to their
   fundamentally mutable nature, and prevent their use as dictionary
-  keys.  \var{callable} is the same as the parameter of the same name
+  keys.  \var{callback} is the same as the parameter of the same name
   to the \function{ref()} function.
 \end{funcdesc}