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-rw-r--r--compiler/rustc_next_trait_solver/src/delegate.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_next_trait_solver/src/delegate.rs b/compiler/rustc_next_trait_solver/src/delegate.rs
index 7b932010d49..a7ecbfcb7c4 100644
--- a/compiler/rustc_next_trait_solver/src/delegate.rs
+++ b/compiler/rustc_next_trait_solver/src/delegate.rs
@@ -76,7 +76,7 @@ pub trait SolverDelegate: Deref<Target = Self::Infcx> + Sized {
         &self,
         goal_trait_ref: ty::TraitRef<Self::Interner>,
         trait_assoc_def_id: <Self::Interner as Interner>::DefId,
-        impl_def_id: <Self::Interner as Interner>::DefId,
+        impl_def_id: <Self::Interner as Interner>::ImplId,
     ) -> Result<
         Option<<Self::Interner as Interner>::DefId>,
         <Self::Interner as Interner>::ErrorGuaranteed,