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-rw-r--r--plugins/extraction/ExtrHaskellNatInteger.v2
1 files changed, 2 insertions, 0 deletions
diff --git a/plugins/extraction/ExtrHaskellNatInteger.v b/plugins/extraction/ExtrHaskellNatInteger.v
index 038f0ed8..4c5c71f5 100644
--- a/plugins/extraction/ExtrHaskellNatInteger.v
+++ b/plugins/extraction/ExtrHaskellNatInteger.v
@@ -1,5 +1,7 @@
(** Extraction of [nat] into Haskell's [Integer] *)
+Require Coq.extraction.Extraction.
+
Require Import Arith.
Require Import ExtrHaskellNatNum.