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-rw-r--r--compiler/utils/IOEnv.hs2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/utils/IOEnv.hs b/compiler/utils/IOEnv.hs
index 6fc5f9dc67..b9210702fa 100644
--- a/compiler/utils/IOEnv.hs
+++ b/compiler/utils/IOEnv.hs
@@ -29,6 +29,8 @@ module IOEnv (
atomicUpdMutVar, atomicUpdMutVar'
) where
+import GhcPrelude
+
import DynFlags
import Exception
import Module