diff --git a/ompi/mpi/fortran/use-mpi-f08/bcast_init_ts.c.in b/ompi/mpi/fortran/use-mpi-f08/bcast_init_ts.c.in
index 5de740bbde7..e872a72d8ec 100644
--- a/ompi/mpi/fortran/use-mpi-f08/bcast_init_ts.c.in
+++ b/ompi/mpi/fortran/use-mpi-f08/bcast_init_ts.c.in
@@ -21,7 +21,6 @@
  * $HEADER$
  */
 
-
 PROTOTYPE VOID bcast_init(BUFFER_ASYNC x, COUNT count, DATATYPE datatype,
                           RANK root, COMM comm, INFO info, REQUEST_OUT request)
 {
@@ -29,7 +28,7 @@ PROTOTYPE VOID bcast_init(BUFFER_ASYNC x, COUNT count, DATATYPE datatype,
     MPI_Comm c_comm;
     MPI_Info c_info;
     MPI_Request c_req;
-    MPI_Datatype c_type, c_datatype;
+    MPI_Datatype c_type, c_datatype = MPI_DATATYPE_NULL;
     void *buffer = OMPI_CFI_BASE_ADDR(x);
     @COUNT_TYPE@ c_count = (@COUNT_TYPE@) *count;
     int c_root = OMPI_FINT_2_INT(*root);
@@ -49,12 +48,12 @@ PROTOTYPE VOID bcast_init(BUFFER_ASYNC x, COUNT count, DATATYPE datatype,
 
     c_ierr = @INNER_CALL@(OMPI_F2C_BOTTOM(buffer),
                           c_count,
-                          c_datatype,
+                          (c_datatype == MPI_DATATYPE_NULL) ? c_type : c_datatype,
                           c_root,
                           c_comm,
                           c_info,
                           &c_req);
-    if (c_datatype != c_type) {
+    if (MPI_DATATYPE_NULL != c_datatype && c_datatype != c_type) {
         ompi_datatype_destroy(&c_datatype);
     }
     if (NULL != ierr) *ierr = OMPI_INT_2_FINT(c_ierr);
diff --git a/ompi/mpi/fortran/use-mpi-f08/gather_init_ts.c.in b/ompi/mpi/fortran/use-mpi-f08/gather_init_ts.c.in
index 270cb1b7601..85ad3eb9bc4 100644
--- a/ompi/mpi/fortran/use-mpi-f08/gather_init_ts.c.in
+++ b/ompi/mpi/fortran/use-mpi-f08/gather_init_ts.c.in
@@ -27,7 +27,8 @@ PROTOTYPE VOID gather_init(BUFFER_ASYNC x1, COUNT sendcount, DATATYPE sendtype,
 {
     int c_ierr;
     MPI_Comm c_comm;
-    MPI_Datatype c_sendtype, c_senddatatype, c_recvtype;
+    MPI_Datatype c_sendtype, c_recvtype;
+    MPI_Datatype c_senddatatype = MPI_DATATYPE_NULL;
     MPI_Info c_info;
     MPI_Request c_request;
     int c_root = OMPI_FINT_2_INT(*root);
@@ -87,7 +88,7 @@ PROTOTYPE VOID gather_init(BUFFER_ASYNC x1, COUNT sendcount, DATATYPE sendtype,
                           c_recvtype,
                           c_root,
                           c_comm, c_info, &c_request);
-    if (c_senddatatype != c_sendtype) {
+    if (MPI_DATATYPE_NULL != c_senddatatype && c_senddatatype != c_sendtype) {
         ompi_datatype_destroy(&c_senddatatype);
     }
     if (NULL != ierr) *ierr = OMPI_INT_2_FINT(c_ierr);
diff --git a/ompi/mpi/fortran/use-mpi-f08/gatherv_init_ts.c.in b/ompi/mpi/fortran/use-mpi-f08/gatherv_init_ts.c.in
index f3cd3577ce2..10e8b8bb5d0 100644
--- a/ompi/mpi/fortran/use-mpi-f08/gatherv_init_ts.c.in
+++ b/ompi/mpi/fortran/use-mpi-f08/gatherv_init_ts.c.in
@@ -27,7 +27,8 @@ PROTOTYPE VOID gatherv_init(BUFFER_ASYNC x1, COUNT sendcount, DATATYPE sendtype,
                             INFO info, REQUEST_OUT request)
 {
     MPI_Comm c_comm;
-    MPI_Datatype c_sendtype, c_senddatatype, c_recvtype;
+    MPI_Datatype c_sendtype, c_recvtype;
+    MPI_Datatype c_senddatatype = MPI_DATATYPE_NULL;
     MPI_Info c_info;
     MPI_Request c_request;
     int idx = 0, c_ierr;
@@ -102,7 +103,7 @@ PROTOTYPE VOID gatherv_init(BUFFER_ASYNC x1, COUNT sendcount, DATATYPE sendtype,
                           c_recvtype,
                           c_root,
                           c_comm, c_info, &c_request);
-    if (c_senddatatype != c_sendtype) {
+    if (MPI_DATATYPE_NULL != c_senddatatype && c_senddatatype != c_sendtype) {
         ompi_datatype_destroy(&c_senddatatype);
     }
     if (NULL != ierr) *ierr = OMPI_INT_2_FINT(c_ierr);