diff --git a/tests/cunit/run_tests.sh b/tests/cunit/run_tests.sh
index 5d5b92f2778..356eee29d3a 100755
--- a/tests/cunit/run_tests.sh
+++ b/tests/cunit/run_tests.sh
@@ -31,7 +31,7 @@ do
     fi
 done
 
-PIO_TESTS_8='test_async_multi2'
+PIO_TESTS_8='test_async_multi2  test_async_manyproc'
 
 for TEST in $PIO_TESTS_8
 do
diff --git a/tests/cunit/test_async_manyproc.c b/tests/cunit/test_async_manyproc.c
index 212d125d1df..0a0b57f94e6 100644
--- a/tests/cunit/test_async_manyproc.c
+++ b/tests/cunit/test_async_manyproc.c
@@ -78,20 +78,20 @@ int main(int argc, char **argv)
         {
             for (int i = 0; i < num_iotypes; i++)
             {
-                /* char filename[NC_MAX_NAME + 1]; /\* Test filename. *\/ */
-                /* /\* Ranks 0, 1, 2 are IO. 3, 4 are the first */
-                /*  * computation component. 5, 6 are the second. *\/ */
-                /* int my_comp_idx = my_rank < NUM_IO_PROCS + NUM_COMP_PROCS ? 0 : 1;  /\* Index in iosysid array. *\/ */
-
-                /* /\* Create sample file. *\/ */
-                /* if ((ret = create_nc_sample_3(iosysid[my_comp_idx], iotype[i], my_rank, my_comp_idx, */
-                /*                               filename, TEST_NAME, 0, 0, 0))) */
-                /*     ERR(ret); */
-
-                /* /\* Check the file for correctness. *\/ */
-                /* if ((ret = check_nc_sample_3(iosysid[my_comp_idx], iotype[i], my_rank, my_comp_idx, */
-                /*                              filename, 0, 0, 0))) */
-                /*     ERR(ret); */
+                char filename[NC_MAX_NAME + 1]; /* Test filename. */
+                /* Ranks 0, 1, 2 are IO. 3, 4 are the first
+                 * computation component. 5, 6 are the second. */
+                int my_comp_idx = my_rank < NUM_IO_PROCS + NUM_COMP_PROCS ? 0 : 1;  /* Index in iosysid array. */
+
+                /* Create sample file. */
+                if ((ret = create_nc_sample_3(iosysid[my_comp_idx], iotype[i], my_rank, my_comp_idx,
+                                              filename, TEST_NAME, 0, 0, 0)))
+                    ERR(ret);
+
+                /* Check the file for correctness. */
+                if ((ret = check_nc_sample_3(iosysid[my_comp_idx], iotype[i], my_rank, my_comp_idx,
+                                             filename, 0, 0, 0)))
+                    ERR(ret);
             } /* next netcdf iotype */
 
             /* Finalize the IO system. Only call this from the computation tasks. */