X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FsimplCore%2FSimplEnv.lhs;h=e62c24fe382c854772e09ce64181d7f332f318d9;hb=4c38417c48af875afa5afbc996fcb53004a50209;hp=294651a0f7efd2185d2878ca23262ad665cbfbed;hpb=7c1e4f1a903bb6443caa22270a7d8c377baaa20a;p=ghc-hetmet.git

diff --git a/compiler/simplCore/SimplEnv.lhs b/compiler/simplCore/SimplEnv.lhs
index 294651a..e62c24f 100644
--- a/compiler/simplCore/SimplEnv.lhs
+++ b/compiler/simplCore/SimplEnv.lhs
@@ -659,7 +659,7 @@ addBndrRules env in_id out_id
   where
     subst     = mkCoreSubst env
     old_rules = idSpecialisation in_id
-    new_rules = CoreSubst.substSpec subst old_rules
+    new_rules = CoreSubst.substSpec subst out_id old_rules
     final_id  = out_id `setIdSpecialisation` new_rules
 
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