diff --git a/clippy_lints/src/eta_reduction.rs b/clippy_lints/src/eta_reduction.rs
index b58018ca035..48c4c4206fe 100644
--- a/clippy_lints/src/eta_reduction.rs
+++ b/clippy_lints/src/eta_reduction.rs
@@ -10,7 +10,7 @@ use rustc_infer::infer::TyCtxtInferExt;
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_middle::ty::{
     self, Binder, ClosureArgs, ClosureKind, FnSig, GenericArg, GenericArgKind, List, Region, RegionKind, Ty,
-    TypeVisitableExt, TypeckResults,
+    TypeVisitableExt, TypeckResults, TyCtxt,
 };
 use rustc_session::declare_lint_pass;
 use rustc_span::symbol::sym;
@@ -240,7 +240,7 @@ fn check_inputs(
         })
 }
 
-fn check_sig<'tcx>(cx: &LateContext<'tcx>, closure: ClosureArgs<'tcx>, call_sig: FnSig<'_>) -> bool {
+fn check_sig<'tcx>(cx: &LateContext<'tcx>, closure: ClosureArgs<TyCtxt<'tcx>>, call_sig: FnSig<'_>) -> bool {
     call_sig.safety == Safety::Safe
         && !has_late_bound_to_non_late_bound_regions(
             cx.tcx.signature_unclosure(closure.sig(), Safety::Safe).skip_binder(),