diff --git a/infer/src/backend/config.ml b/infer/src/backend/config.ml
index a3c9d8a3c..9edf59031 100644
--- a/infer/src/backend/config.ml
+++ b/infer/src/backend/config.ml
@@ -199,6 +199,9 @@ let reactive_mode = ref false
     If a procedure was changed beforehand, keep the changed marking. *)
 let continue_capture = ref false
 
+(** Merge the captured results directories specified in the dependency file *)
+let merge = ref false
+
 (** Flag for footprint discovery mode *)
 let footprint = ref true
 
diff --git a/infer/src/backend/inferanalyze.ml b/infer/src/backend/inferanalyze.ml
index 4862ddb76..6399ae0bb 100644
--- a/infer/src/backend/inferanalyze.ml
+++ b/infer/src/backend/inferanalyze.ml
@@ -165,7 +165,7 @@ let arg_desc =
         " activate the eradicate checker for java annotations"
         ;
         "-merge",
-        Arg.Unit MergeCapture.merge_captured_targets,
+        Arg.Set Config.merge,
         None,
         "merge the captured results directories specified in the dependency file"
         ;
@@ -238,7 +238,8 @@ let () = (* parse command-line arguments *)
     begin
       L.err "ERROR: results directory %s does not exist@.@." !Config.results_dir;
       print_usage_exit ()
-    end
+    end ;
+  if !Config.merge then MergeCapture.merge_captured_targets ()
 
 let analyze_exe_env exe_env =
   let init_time = Unix.gettimeofday () in