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-rw-r--r--compiler/deSugar/Match.lhs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/deSugar/Match.lhs b/compiler/deSugar/Match.lhs
index 649b2f135e..2c9aa0bfd8 100644
--- a/compiler/deSugar/Match.lhs
+++ b/compiler/deSugar/Match.lhs
@@ -293,7 +293,7 @@ match vars@(v:_) ty eqns
; let grouped = groupEquations tidy_eqns
-- print the view patterns that are commoned up to help debug
- ; ifOptM Opt_D_dump_view_pattern_commoning (debug grouped)
+ ; ifDOptM Opt_D_dump_view_pattern_commoning (debug grouped)
; match_results <- mapM match_group grouped
; return (adjustMatchResult (foldr1 (.) aux_binds) $