diff --git a/cql3/functions/abstract_function.hh b/cql3/functions/abstract_function.hh
index b29e76644f..863230b16e 100644
--- a/cql3/functions/abstract_function.hh
+++ b/cql3/functions/abstract_function.hh
@@ -42,6 +42,7 @@
 #pragma once
 
 #include "types.hh"
+#include "cql3/cql3_type.hh"
 #include <vector>
 #include <iosfwd>
 #include <boost/functional/hash.hpp>
@@ -105,9 +106,9 @@ abstract_function::print(std::ostream& os) const {
         if (i > 0) {
             os << ", ";
         }
-        os << _arg_types[i]->name(); // FIXME: asCQL3Type()
+        os << _arg_types[i]->as_cql3_type()->to_string();
     }
-    os << ") -> " << _return_type->name(); // FIXME: asCQL3Type()
+    os << ") -> " << _return_type->as_cql3_type()->to_string();
 }
 
 }