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-rw-r--r--lib/hipe/cerl/erl_types.erl4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 8b9b1241a0..3c6d42572a 100644
--- a/lib/hipe/cerl/erl_types.erl
+++ b/lib/hipe/cerl/erl_types.erl
@@ -614,7 +614,9 @@ t_find_unknown_opaque(T1, T2, Opaques) ->
%% is assumed to be taken from the contract.
t_decorate_with_opaque(T1, T2, Opaques) ->
- case t_is_equal(T1, T2) orelse not t_contains_opaque(T2) of
+ case
+ Opaques =:= [] orelse t_is_equal(T1, T2) orelse not t_contains_opaque(T2)
+ of
true -> T1;
false ->
T = t_inf(T1, T2),