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-rw-r--r--compiler/codeGen/StgCmmMonad.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/codeGen/StgCmmMonad.hs b/compiler/codeGen/StgCmmMonad.hs
index c5ad73da4d..bb093a5e51 100644
--- a/compiler/codeGen/StgCmmMonad.hs
+++ b/compiler/codeGen/StgCmmMonad.hs
@@ -735,7 +735,7 @@ emitComment _ = return ()
emitTick :: CmmTickish -> FCode ()
emitTick = emitCgStmt . CgStmt . CmmTick
-emitUnwind :: [(GlobalReg, CmmExpr)] -> FCode ()
+emitUnwind :: [(GlobalReg, Maybe CmmExpr)] -> FCode ()
emitUnwind regs = do
dflags <- getDynFlags
when (debugLevel dflags > 0) $ do