diff --git a/src/main_utils.cpp b/src/main_utils.cpp
index 5d1e2eb..c61c63a 100644
--- a/src/main_utils.cpp
+++ b/src/main_utils.cpp
@@ -10,6 +10,7 @@
 
 
 #define DEFAULT_TAG 0
+#define JOB_DIAGNOSTICS_TAG 1
 #define MASTER 0
 
 
@@ -157,7 +158,7 @@ void master(const size_t min_index_inclusive, const size_t max_index_exclusive)
 
         // And finally we ask for the total number of tasks it had to compute
         int tmp_n_jobs;
-        MPI_Recv(&tmp_n_jobs, 1, MPI_INT, MPI_ANY_SOURCE, DEFAULT_TAG, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
+        MPI_Recv(&tmp_n_jobs, 1, MPI_INT, MPI_ANY_SOURCE, JOB_DIAGNOSTICS_TAG, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
         jobs_finished_per_task.push_back(tmp_n_jobs);   
     }
 
@@ -193,7 +194,7 @@ void worker(const utils::SimulationParameters params)
         {
             // Now we can return some information back to the master process about
             // how many jobs were completed.
-            MPI_Send(&total_jobs, 1, MPI_INT, 0, DEFAULT_TAG, MPI_COMM_WORLD);
+            MPI_Send(&total_jobs, 1, MPI_INT, 0, JOB_DIAGNOSTICS_TAG, MPI_COMM_WORLD);
 
             // Finish signal received, break from the loop
             return;