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-rw-r--r--compiler/GHC/Tc/Deriv/Generate.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/GHC/Tc/Deriv/Generate.hs b/compiler/GHC/Tc/Deriv/Generate.hs
index 259d7ce20f..d4e4b87db8 100644
--- a/compiler/GHC/Tc/Deriv/Generate.hs
+++ b/compiler/GHC/Tc/Deriv/Generate.hs
@@ -72,6 +72,7 @@ import GHC.Builtin.Types.Prim
import GHC.Builtin.Types
import GHC.Core.Type
import GHC.Core.Class
+
import GHC.Types.Unique.FM ( lookupUFM, listToUFM )
import GHC.Types.Var.Env
import GHC.Utils.Misc