Fix flaggery for RULES (cf Trac #2497)

[ghc-hetmet.git] / compiler / typecheck / TcDeriv.lhs

diff --git a/compiler/typecheck/TcDeriv.lhs b/compiler/typecheck/TcDeriv.lhs
index efc46cd..ea38b34 100644 (file)
--- a/compiler/typecheck/TcDeriv.lhs
+++ b/compiler/typecheck/TcDeriv.lhs
@@ -308,8 +308,8 @@ renameDeriv is_boot gen_binds insts
 
   | otherwise
   = discardWarnings $   -- Discard warnings about unused bindings etc
-    do { (rn_gen, dus_gen) <- setOptM Opt_PatternSignatures $  -- Type signatures in patterns 
-                                                               -- are used in the generic binds
+    do { (rn_gen, dus_gen) <- setOptM Opt_ScopedTypeVariables $  -- Type signatures in patterns 
+                                                                 -- are used in the generic binds
                               rnTopBinds (ValBindsIn gen_binds [])
        ; keepAliveSetTc (duDefs dus_gen)       -- Mark these guys to be kept alive