diff --git a/src/librustc_mir/borrow_check/type_check/liveness/polonius.rs b/src/librustc_mir/borrow_check/type_check/liveness/polonius.rs
index 407e0628b6eb..1c1983fefd41 100644
--- a/src/librustc_mir/borrow_check/type_check/liveness/polonius.rs
+++ b/src/librustc_mir/borrow_check/type_check/liveness/polonius.rs
@@ -43,7 +43,7 @@ impl UseFactsExtractor<'_> {
 
     fn insert_path_access(&mut self, path: MovePathIndex, location: Location) {
         debug!("UseFactsExtractor::insert_path_access({:?}, {:?})", path, location);
-        self.path_accessed_at_base.push((path, self.location_table.start_index(location)));
+        self.path_accessed_at_base.push((path, self.location_to_index(location)));
     }
 
     fn place_to_mpi(&self, place: &Place<'_>) -> Option<MovePathIndex> {