diff --git a/infer/src/backend/ondemand.ml b/infer/src/backend/ondemand.ml
index a9689eeece0..7646aac5248 100644
--- a/infer/src/backend/ondemand.ml
+++ b/infer/src/backend/ondemand.ml
@@ -130,7 +130,9 @@ let run_proc_analysis exe_env tenv ?specialization ?caller_pname callee_pdesc =
     fun () ->
       let elapsed = Mtime_clock.count start_time in
       let duration_us = IMtime.span_to_us_int elapsed in
-      Stats.add_proc_duration_us (Procname.to_string callee_pname) duration_us ;
+      let file = SourceFile.to_rel_path callee_attributes.loc.file in
+      let pname = Procname.to_string callee_pname in
+      Stats.add_proc_duration_us file pname duration_us ;
       L.(debug Analysis Medium)
         "Elapsed analysis time: %a: %a@\n" Procname.pp callee_pname Mtime.Span.pp elapsed
   in
diff --git a/infer/src/base/Stats.ml b/infer/src/base/Stats.ml
index 46c217e25ea..2ffd578f7e8 100644
--- a/infer/src/base/Stats.ml
+++ b/infer/src/base/Stats.ml
@@ -10,13 +10,13 @@ module L = Logging
 module PulseSumCountMap = Caml.Map.Make (Int)
 
 module DurationItem = struct
-  type t = {duration_us: int; pname: string} [@@deriving equal]
+  type t = {duration_us: int; file: string; pname: string} [@@deriving equal]
 
-  let dummy = {duration_us= 0; pname= ""}
+  let dummy = {duration_us= 0; file= ""; pname= ""}
 
   let compare {duration_us= dr1} {duration_us= dr2} = Int.compare dr1 dr2
 
-  let pp f {pname; duration_us} = F.fprintf f "%5dus: %s" duration_us pname
+  let pp f {pname; file; duration_us} = F.fprintf f "%5dus: %s: %s" duration_us file pname
 end
 
 module LongestProcDurationHeap = struct
@@ -167,9 +167,9 @@ let add_pulse_summaries_count n =
       PulseSumCountMap.update n (fun i -> Some (1 + Option.value ~default:0 i)) counters )
 
 
-let add_proc_duration_us pname duration_us =
+let add_proc_duration_us file pname duration_us =
   update_with Fields.longest_proc_duration_heap ~f:(fun heap ->
-      let new_elt = DurationItem.{pname; duration_us} in
+      let new_elt = DurationItem.{pname; file; duration_us} in
       LongestProcDurationHeap.update new_elt heap ;
       heap )
 
diff --git a/infer/src/base/Stats.mli b/infer/src/base/Stats.mli
index b2b394923a1..d61c2261b1f 100644
--- a/infer/src/base/Stats.mli
+++ b/infer/src/base/Stats.mli
@@ -42,7 +42,7 @@ val add_pulse_interrupted_loops : int -> unit
 
 val add_pulse_summaries_count : int -> unit
 
-val add_proc_duration_us : string -> int -> unit
+val add_proc_duration_us : string -> string -> int -> unit
 
 val incr_topl_reachable_calls : unit -> unit