diff --git a/infer/src/integration/Buck.ml b/infer/src/integration/Buck.ml
index 402e4bbfa..e5112e367 100644
--- a/infer/src/integration/Buck.ml
+++ b/infer/src/integration/Buck.ml
@@ -410,7 +410,8 @@ let run_buck_build prog buck_build_args =
         let filename = Config.project_root ^/ target_path ^/ Config.buck_infer_deps_file_name in
         if PolyVariantEqual.(Sys.file_exists filename = `Yes) then filename :: acc else acc
     | _ ->
-        L.die ExternalError "Couldn't parse buck target output: %s" line
+        L.internal_error "Couldn't parse buck target output: %s" line ;
+        acc
   in
   match Unix.waitpid pid with
   | Ok () -> (
diff --git a/infer/src/integration/BuckGenrule.ml b/infer/src/integration/BuckGenrule.ml
index 6287f96b3..a64c5ddcd 100644
--- a/infer/src/integration/BuckGenrule.ml
+++ b/infer/src/integration/BuckGenrule.ml
@@ -15,7 +15,7 @@ let write_infer_deps infile =
     | [target; target_output_path] ->
         Printf.fprintf out_channel "%s\t-\t%s\n" target (Config.project_root ^/ target_output_path)
     | _ ->
-        L.die ExternalError "Couldn't parse buck target output: %s@." line
+        L.internal_error "Couldn't parse buck target output: %s@." line
   in
   let infer_deps = Config.(results_dir ^/ buck_infer_deps_file_name) in
   Utils.with_file_out infer_deps ~f:(fun out_channel ->