1 files changed, 5 insertions, 2 deletions

diff --git a/crates/hir/src/lib.rs b/crates/hir/src/lib.rs
index 7b9de11ed..f15fb1a82 100644
--- a/crates/hir/src/lib.rs
+++ b/crates/hir/src/lib.rs
@@ -51,7 +51,7 @@ use hir_expand::{diagnostics::DiagnosticSink, name::name, MacroDefKind};
 use hir_ty::{
     autoderef,
     display::{write_bounds_like_dyn_trait_with_prefix, HirDisplayError, HirFormatter},
-    method_resolution,
+    method_resolution, to_assoc_type_id,
     traits::{FnTrait, Solution, SolutionVariables},
     AliasTy, BoundVar, CallableDefId, CallableSig, Canonical, DebruijnIndex, GenericPredicate,
     InEnvironment, Interner, Obligation, ProjectionPredicate, ProjectionTy, Scalar, Substs,
@@ -1683,7 +1683,10 @@ impl Type {
             .fill(args.iter().map(|t| t.ty.value.clone()))
             .build();
         let predicate = ProjectionPredicate {
-            projection_ty: ProjectionTy { associated_ty: alias.id, parameters: subst },
+            projection_ty: ProjectionTy {
+                associated_ty: to_assoc_type_id(alias.id),
+                parameters: subst,
+            },
             ty: TyKind::BoundVar(BoundVar::new(DebruijnIndex::INNERMOST, 0)).intern(&Interner),
         };
         let goal = Canonical {