diff --git a/infer/src/backend/Differential.ml b/infer/src/backend/Differential.ml
index eb148f9b3..4bc8c58cc 100644
--- a/infer/src/backend/Differential.ml
+++ b/infer/src/backend/Differential.ml
@@ -45,7 +45,7 @@ let dedup (issues : Jsonbug_t.jsonbug list) =
     ~f:(fun (reported_ends, nondup_issues) (issue : Jsonbug_t.jsonbug) ->
       match issue.access with
       | Some encoded ->
-          let _, _, end_locs = IssueAuxData.decode encoded in
+          let end_locs = IssueAuxData.decode encoded in
           if is_duplicate_report end_locs reported_ends then (reported_ends, nondup_issues)
           else (LocListSet.add reported_ends end_locs, {issue with access= None} :: nondup_issues)
       | None ->
diff --git a/infer/src/concurrency/IssueAuxData.ml b/infer/src/concurrency/IssueAuxData.ml
index b3f666a8f..ba0f348e6 100644
--- a/infer/src/concurrency/IssueAuxData.ml
+++ b/infer/src/concurrency/IssueAuxData.ml
@@ -7,7 +7,7 @@
 
 open! IStd
 
-type t = Typ.Procname.t * RacerDDomain.TraceElem.t * Location.t list
+type t = Location.t list
 
 let encode decoded = B64.encode (Marshal.to_string decoded [])
 
diff --git a/infer/src/concurrency/IssueAuxData.mli b/infer/src/concurrency/IssueAuxData.mli
index 2cb77d73f..295408ded 100644
--- a/infer/src/concurrency/IssueAuxData.mli
+++ b/infer/src/concurrency/IssueAuxData.mli
@@ -7,7 +7,7 @@
 
 open! IStd
 
-type t = Typ.Procname.t * RacerDDomain.TraceElem.t * Location.t list
+type t = Location.t list
 
 val encode : t -> string
 
diff --git a/infer/src/concurrency/RacerD.ml b/infer/src/concurrency/RacerD.ml
index 496c2e4d7..dcbc79056 100644
--- a/infer/src/concurrency/RacerD.ml
+++ b/infer/src/concurrency/RacerD.ml
@@ -885,7 +885,7 @@ let report_thread_safety_violation tenv pdesc ~make_description ~report_kind acc
       let issue_type, explanation = get_reporting_explanation report_kind tenv pname thread in
       let error_message = F.sprintf "%s%s" description explanation in
       let end_locs = Option.to_list original_end @ Option.to_list conflict_end in
-      let access = IssueAuxData.encode (pname, access, end_locs) in
+      let access = IssueAuxData.encode end_locs in
       log_issue pname ~loc ~ltr ~access issue_type error_message
   in
   let trace_of_pname = trace_of_pname access pdesc in