diff --git a/ompi/mpi/f90/scripts/mpi-f90-interfaces.h.sh b/ompi/mpi/f90/scripts/mpi-f90-interfaces.h.sh
index b7164344d9..15fb52c9d8 100755
--- a/ompi/mpi/f90/scripts/mpi-f90-interfaces.h.sh
+++ b/ompi/mpi/f90/scripts/mpi-f90-interfaces.h.sh
@@ -57,23 +57,27 @@ EOF
 # equivalents
 
 start MPI_Wtick small
-cat <<EOF
+if test "$output" = "1"; then
+    cat <<EOF
 
 function MPI_Wtick()
     double precision MPI_Wtick
 end function MPI_Wtick
 
 EOF
+fi
 end MPI_Wtick
 
 start MPI_Wtime small
-cat <<EOF
+if test "$output" = "1"; then
+    cat <<EOF
 
 function MPI_Wtime()
     double precision MPI_Wtime
 end function MPI_Wtime
 
 EOF
+fi
 end MPI_Wtime
 
 #------------------------------------------------------------------------
diff --git a/ompi/mpi/f90/xml/chasm-mpi.i.f90.xsl b/ompi/mpi/f90/xml/chasm-mpi.i.f90.xsl
index e6a12168e1..4c5a9e0b22 100644
--- a/ompi/mpi/f90/xml/chasm-mpi.i.f90.xsl
+++ b/ompi/mpi/f90/xml/chasm-mpi.i.f90.xsl
@@ -653,23 +653,27 @@ allranks="0 $ranks"
 # equivalents
 
 start MPI_Wtick small
-cat <<EOF
+if test "$output" = "1"; then
+    cat <<EOF
 
 function MPI_Wtick()
     double precision MPI_Wtick
 end function MPI_Wtick
 
 EOF
+fi
 end MPI_Wtick
 
 start MPI_Wtime small
-cat <<EOF
+if test "$output" = "1"; then
+    cat <<EOF
 
 function MPI_Wtime()
     double precision MPI_Wtime
 end function MPI_Wtime
 
 EOF
+fi
 end MPI_Wtime
 
 #------------------------------------------------------------------------