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-rw-r--r--compiler/GHC/Tc/Deriv/Generics.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/GHC/Tc/Deriv/Generics.hs b/compiler/GHC/Tc/Deriv/Generics.hs
index ea9862d305..9821d040e3 100644
--- a/compiler/GHC/Tc/Deriv/Generics.hs
+++ b/compiler/GHC/Tc/Deriv/Generics.hs
@@ -49,6 +49,7 @@ import GHC.Data.Bag
import GHC.Types.Var.Env
import GHC.Types.Var.Set (elemVarSet)
import GHC.Utils.Outputable
+import GHC.Utils.Panic
import GHC.Data.FastString
import GHC.Utils.Misc