diff --git a/ihp-hsx/IHP/HSX/HsExpToTH.hs b/ihp-hsx/IHP/HSX/HsExpToTH.hs
index dc28a8714..b30f672b9 100644
--- a/ihp-hsx/IHP/HSX/HsExpToTH.hs
+++ b/ihp-hsx/IHP/HSX/HsExpToTH.hs
@@ -74,11 +74,12 @@ toFieldExp = undefined
 -- Th.ConP Name [Type] [Pat]
 -- ConPat (XConPat p) (XRec p (ConLikeP p)) (HsConPatDetails p)
 -- type XConPat GhcRn = NoExtField see
+-- Looks like we need the https://hackage.haskell.org/package/ghc-9.4.2/docs/GHC-Hs-Syn-Type.html hsLPatType :: LPat GhcTc -> Type
 toPat :: Pat.Pat GhcPs -> TH.Pat
 toPat (Pat.VarPat _ (unLoc -> name)) = TH.VarP (toName name)
 toPat (TuplePat _ p _) = TH.TupP (map (toPat . unLoc) p)
 toPat (ParPat xP lP) = (toPat . unLoc) lP --error "TH.ParPat not implemented"
-toPat (ConPat pat_con_ext pat_con pat_args) = TH.ConP (toName pat_con_ext) (map toType (pat_con)) (map (toPat . unLoc) (Pat.hsConPatArgs pat_args))  --error "TH.ConstructorPattern not implemented"
+toPat (ConPat pat_con_ext pat_con pat_args) = TH.ConP (toName pat_con_ext) (map toType (map hsLPatType (Pat.hsConPatArgs pat_args))) (map (toPat . unLoc) (Pat.hsConPatArgs pat_args))  --error "TH.ConstructorPattern not implemented"
 toPat (ViewPat pat_con pat_args pat_con_ext) = error "TH.ViewPattern not implemented"
 toPat (SumPat _ _ _ _) = error "TH.SumPat not implemented"
 toPat (WildPat _ ) = error "TH.WildPat not implemented"