diff options
| -rw-r--r-- | compiler/types/Coercion.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/types/Coercion.hs b/compiler/types/Coercion.hs index b365f724da..72e9318feb 100644 --- a/compiler/types/Coercion.hs +++ b/compiler/types/Coercion.hs @@ -868,7 +868,7 @@ mkNthCo 0 (Refl _ ty) | Just (tv, _) <- splitForAllTy_maybe ty = Refl Nominal (tyVarKind tv) mkNthCo n (Refl r ty) - = ASSERT( ok_tc_app ty n ) + = ASSERT2( ok_tc_app ty n, ppr n $$ ppr ty ) mkReflCo r' (tyConAppArgN n ty) where tc = tyConAppTyCon ty r' = nthRole r tc n |