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-rw-r--r--compiler/utils/UnVarGraph.hs2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/utils/UnVarGraph.hs b/compiler/utils/UnVarGraph.hs
index 228f3b5220..a540132bb7 100644
--- a/compiler/utils/UnVarGraph.hs
+++ b/compiler/utils/UnVarGraph.hs
@@ -27,6 +27,8 @@ module UnVarGraph
, delNode
) where
+import GhcPrelude
+
import Id
import VarEnv
import UniqFM