diff --git a/doc/TODO b/doc/TODO
index b6ececf938d..53bec95dcf8 100644
--- a/doc/TODO
+++ b/doc/TODO
@@ -94,6 +94,7 @@ TYPES
 * Declare typein/out functions in pg_proc with a special "C string" data type
 * Add non-large-object binary field
 * Functions returning sets don't really work right[function]
+* Add hash for int8
 
 VIEWS