Index: src/libcfa/containers/maybe
===================================================================
--- src/libcfa/containers/maybe	(revision 20877d2eef6ecadc8e9da4a79b2995277fb25362)
+++ src/libcfa/containers/maybe	(revision 0698aa1b5a7ea80416468a0bda92dba61d09df20)
@@ -29,17 +29,17 @@
 
 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)