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-rw-r--r--compiler/prelude/TysWiredIn.lhs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/prelude/TysWiredIn.lhs b/compiler/prelude/TysWiredIn.lhs
index 7a06bae163..f36e717950 100644
--- a/compiler/prelude/TysWiredIn.lhs
+++ b/compiler/prelude/TysWiredIn.lhs
@@ -104,6 +104,7 @@ import Data.Array
import FastString
import Outputable
import Config
+import Util
alpha_tyvar :: [TyVar]
alpha_tyvar = [alphaTyVar]