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-rw-r--r--theories/FSets/FMapPositive.v1
1 files changed, 1 insertions, 0 deletions
diff --git a/theories/FSets/FMapPositive.v b/theories/FSets/FMapPositive.v
index 0fc68b1433..b47c99244b 100644
--- a/theories/FSets/FMapPositive.v
+++ b/theories/FSets/FMapPositive.v
@@ -73,6 +73,7 @@ Module PositiveMap <: S with Module E:=PositiveOrderedTypeBits.
Definition key := positive : Type.
+ #[universes(template)]
Inductive tree (A : Type) :=
| Leaf : tree A
| Node : tree A -> option A -> tree A -> tree A.