Index: src/libcfa/containers/maybe
===================================================================
--- src/libcfa/containers/maybe	(revision 6b0b624129f6017f7706b516a24a52e382e3a334)
+++ src/libcfa/containers/maybe	(revision f22b7aef178b7a41cf78ff7eb976b7ff2c9c051e)
@@ -27,17 +27,17 @@
 
 forall(otype T)
-void ?{}(maybe(T) * this);
+void ?{}(maybe(T) & this);
 
 forall(otype T)
-void ?{}(maybe(T) * this, T value);
+void ?{}(maybe(T) & this, T value);
 
 forall(otype T)
-void ?{}(maybe(T) * this, maybe(T) other);
+void ?{}(maybe(T) & this, maybe(T) other);
 
 forall(otype T)
-void ^?{}(maybe(T) * this);
+void ^?{}(maybe(T) & this);
 
 forall(otype T)
-maybe(T) ?=?(maybe(T) * this, maybe(T) other);
+maybe(T) ?=?(maybe(T) & this, maybe(T) other);
 
 forall(otype T)