diff --git a/src/aeso_ast_infer_types.erl b/src/aeso_ast_infer_types.erl
index 658315d..1763354 100644
--- a/src/aeso_ast_infer_types.erl
+++ b/src/aeso_ast_infer_types.erl
@@ -1135,7 +1135,7 @@ infer_expr(Env, {list_comp, AsLC, Yield, [{letval, AsLV, Pattern, Type, E}|Rest]
     };
 infer_expr(Env, {list_comp, AsLC, Yield, [Def={letfun, AsLF, _, _, _, _}|Rest]}) ->
     {{Name, TypeSig}, LetFun} = infer_letfun(Env, Def),
-    FunT = freshen_type(AsLF, typesig_to_fun_t(TypeSig)),
+    FunT = typesig_to_fun_t(TypeSig),
     NewE = bind_var({id, AsLF, Name}, FunT, Env),
     {typed, _, {list_comp, _, TypedYield, TypedRest}, ResType} =
         infer_expr(NewE, {list_comp, AsLC, Yield, Rest}),