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diff --git a/test-suite/bugs/closed/4816.v b/test-suite/bugs/closed/4816.v
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+++ b/test-suite/bugs/closed/4816.v
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+Section foo.
+Polymorphic Universes A B.
+Fail Constraint A <= B.
+End foo.
+(* gives an anomaly Universe undefined *)
+
+Universes X Y.
+Section Foo.
+  Polymorphic Universes Z W.
+  Polymorphic Constraint W < Z.
+
+  Fail Definition bla := Type@{W}.
+  Polymorphic Definition bla := Type@{W}.
+  Section Bar.
+    Fail Constraint X <= Z.
+  End Bar.
+End Foo.