Typo, spotted by Detlef Lannert.
diff --git a/Doc/lib/libweakref.tex b/Doc/lib/libweakref.tex
index 7f851cd..d56f1cb 100644
--- a/Doc/lib/libweakref.tex
+++ b/Doc/lib/libweakref.tex
@@ -53,7 +53,7 @@
Weak references support tests for equality, but not ordering. If
the referents are still alive, two references have the same
- equalality relationship as their referents (regardless of the
+ equality relationship as their referents (regardless of the
\var{callback}). If either referent has been deleted, the
references are equal only if the reference objects are the same
object.