diff --git a/README b/README
index 3425a5952897b14ba0853ead66ce40ca89c24154..c088a94488133ddf53cd8a6eba45d8dcdebfeb72 100644
--- a/README
+++ b/README
@@ -38,6 +38,7 @@ Valid options are:
                     1: MPI-rank 0 writes,
                     2: All MPI-ranks write.
   -y          {int} Time-step frequency at which task graphs are dumped.
+  -Y          {int} Time-step frequency at which threadpool tasks are dumped.
   -h                Print this help message and exit.
 
 See the file parameter_example.yml for an example of parameter file.
diff --git a/examples/main.c b/examples/main.c
index 65a048526b248c9381451e04b5ba5f9919deca71..89b1317cf855c91c61f8b22dc29a7412a75ef7a0 100644
--- a/examples/main.c
+++ b/examples/main.c
@@ -103,6 +103,8 @@ void print_help_message() {
   printf("  %2s %14s %s\n", "", "", "2: All MPI-ranks write.");
   printf("  %2s %14s %s\n", "-y", "{int}",
          "Time-step frequency at which task graphs are dumped.");
+  printf("  %2s %14s %s\n", "-Y", "{int}",
+         "Time-step frequency at which threadpool tasks are dumped.");
   printf("  %2s %14s %s\n", "-h", "", "Print this help message and exit.");
   printf(
       "\nSee the file parameter_example.yml for an example of "