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-rw-r--r--compiler/typecheck/TcUnify.hs2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/typecheck/TcUnify.hs b/compiler/typecheck/TcUnify.hs
index 6c45279c74..926db6e65b 100644
--- a/compiler/typecheck/TcUnify.hs
+++ b/compiler/typecheck/TcUnify.hs
@@ -38,6 +38,8 @@ module TcUnify (
#include "HsVersions.h"
+import GhcPrelude
+
import HsSyn
import TyCoRep
import TcMType