diff --git a/infer/src/quandary/QuandaryConfig.ml b/infer/src/quandary/QuandaryConfig.ml
index 3406e87d3..e85a5e7e5 100644
--- a/infer/src/quandary/QuandaryConfig.ml
+++ b/infer/src/quandary/QuandaryConfig.ml
@@ -19,9 +19,9 @@ module Source = struct
   let of_json = function
     | `List sources ->
         let parse_source json =
-          let open Yojson.Basic.Util in
-          let procedure = json |> member "procedure" |> to_string |> Str.regexp in
-          let kind = json |> member "kind" |> to_string in
+          let open Yojson.Basic in
+          let procedure = Util.member "procedure" json |> Util.to_string |> Str.regexp in
+          let kind = Util.member "kind" json |> Util.to_string in
           { procedure; kind; } in
         List.map ~f:parse_source sources
     | _ ->
@@ -34,10 +34,11 @@ module Sink = struct
   let of_json = function
     | `List sinks ->
         let parse_sink json =
-          let open Yojson.Basic.Util in
-          let procedure = json |> member "procedure" |> to_string |> Str.regexp in
-          let kind = json |> member "kind" |> to_string in
-          let index = json |> member "index" |> to_string in
+          let open Yojson.Basic in
+          let procedure = Util.member "procedure" json |> Util.to_string |> Str.regexp in
+          let kind = Util.member "kind" json |> Util.to_string in
+          let index =
+            Util.member "index" json |> Util.to_string_option |> Option.value ~default:"all" in
           { procedure; kind; index; } in
         List.map ~f:parse_sink sinks
     | _ ->
diff --git a/infer/tests/codetoanalyze/java/quandary/.inferconfig b/infer/tests/codetoanalyze/java/quandary/.inferconfig
index 53ab60cb7..ed7360631 100644
--- a/infer/tests/codetoanalyze/java/quandary/.inferconfig
+++ b/infer/tests/codetoanalyze/java/quandary/.inferconfig
@@ -13,8 +13,7 @@
     },
     {
       "procedure": "codetoanalyze.java.quandary.ExternalSpecs.loggingSink2",
-      "kind": "Logging",
-      "index": "all"
+      "kind": "Logging"
     }
   ]
 }