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diff --git a/gcc/testsuite/gfortran.dg/nested_modules_2.f90 b/gcc/testsuite/gfortran.dg/nested_modules_2.f90
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+! { dg-do run }
+! This tests the patch for PR16861.
+!
+! Contributed by Paul Thomas <pault@gcc.gnu.org>
+!
+module foo
+INTEGER :: i
+end module foo
+
+module bar
+contains
+subroutine sub1 (j)
+  use foo
+  integer, dimension(i) :: j
+  j = 42
+end subroutine sub1
+subroutine sub2 (k)
+  use foo
+  integer, dimension(i) :: k
+  k = 84
+end subroutine sub2
+end module bar
+
+module foobar
+  use foo                      !This used to cause an ICE
+  use bar
+end module foobar
+
+program testfoobar
+  use foobar
+  integer, dimension(3)  :: l = 0
+  i = 2
+  call sub1 (l)
+  i = 1
+  call sub2 (l)
+  if (all (l.ne.(/84,42,0/))) call abort ()
+end program testfoobar
+
+! { dg-final { cleanup-modules "foo bar foobar" } }