diff --git a/nc_test4/tst_parallel3.c b/nc_test4/tst_parallel3.c
index ecdd22c3f..17f5e0bde 100644
--- a/nc_test4/tst_parallel3.c
+++ b/nc_test4/tst_parallel3.c
@@ -113,7 +113,6 @@ int main(int argc, char **argv)
    if (mpi_rank == 0)
       SUMMARIZE_ERR;
 
-#if 0
    if (mpi_rank == 0)
       printf("*** Testing parallel IO for raw-data with MPIPOSIX-IO (driver)...");
    facc_type = NC_NETCDF4;
@@ -122,7 +121,6 @@ int main(int argc, char **argv)
    if(test_pio(NC_COLLECTIVE)!=0) ERR;
    if (mpi_rank == 0)
       SUMMARIZE_ERR;
-#endif
 
    if (mpi_rank == 0)
       printf("*** Testing parallel IO for meta-data with MPIPOSIX-IO (driver)...");