diff --git a/src/concurrency/data_race.rs b/src/concurrency/data_race.rs
index 3f05925d343..90b38225105 100644
--- a/src/concurrency/data_race.rs
+++ b/src/concurrency/data_race.rs
@@ -1061,7 +1061,7 @@ fn validate_atomic_op<A: Debug + Copy>(
         if let Some(data_race) = &this.machine.data_race {
             if data_race.race_detecting() {
                 let size = place.layout.size;
-                let (alloc_id, base_offset, _tag) = this.ptr_get_alloc_id(place.ptr)?;
+                let (alloc_id, base_offset, _prov) = this.ptr_get_alloc_id(place.ptr)?;
                 // Load and log the atomic operation.
                 // Note that atomic loads are possible even from read-only allocations, so `get_alloc_extra_mut` is not an option.
                 let alloc_meta = this.get_alloc_extra(alloc_id)?.data_race.as_ref().unwrap();
diff --git a/src/shims/backtrace.rs b/src/shims/backtrace.rs
index 3c15165d67b..c5aab255aaf 100644
--- a/src/shims/backtrace.rs
+++ b/src/shims/backtrace.rs
@@ -123,7 +123,7 @@ fn resolve_frame_pointer(
 
         let ptr = this.read_pointer(ptr)?;
         // Take apart the pointer, we need its pieces.
-        let (alloc_id, offset, _tag) = this.ptr_get_alloc_id(ptr)?;
+        let (alloc_id, offset, _prov) = this.ptr_get_alloc_id(ptr)?;
 
         let fn_instance =
             if let Some(GlobalAlloc::Function(instance)) = this.tcx.get_global_alloc(alloc_id) {