diff --git a/after/queries/haskell/matchup.scm b/after/queries/haskell/matchup.scm
index bddcdde..ffcbca5 100644
--- a/after/queries/haskell/matchup.scm
+++ b/after/queries/haskell/matchup.scm
@@ -14,7 +14,7 @@
 
 ; --------------- lambda case ----------------
 (expression/lambda_case
-  "\case" @open.case
+  "\\case" @open.case
   (alternatives
     (alternative) @mid.case.1)) @scope.case