diff --git a/gcc/fortran/expr.cc b/gcc/fortran/expr.cc
index 3036b1be60f..c295721b9d6 100644
--- a/gcc/fortran/expr.cc
+++ b/gcc/fortran/expr.cc
@@ -1552,7 +1552,11 @@ find_array_section (gfc_expr *expr, gfc_ref *ref)
       lower = ref->u.ar.as->lower[d];
       upper = ref->u.ar.as->upper[d];

-      if (!lower || !upper)
+      if (!lower || !upper
+	  || lower->expr_type != EXPR_CONSTANT
+	  || upper->expr_type != EXPR_CONSTANT
+	  || lower->ts.type != BT_INTEGER
+	  || upper->ts.type != BT_INTEGER)
 	{
 	  t = false;
 	  goto cleanup;
diff --git a/gcc/testsuite/gfortran.dg/pr108527.f90 b/gcc/testsuite/gfortran.dg/pr108527.f90
index c97ba3111cb..804514810ac 100644
--- a/gcc/testsuite/gfortran.dg/pr108527.f90
+++ b/gcc/testsuite/gfortran.dg/pr108527.f90
@@ -4,7 +4,7 @@

 program p
   integer, parameter :: a((2.)) = [4,8] ! { dg-error "must be of INTEGER type" }
-  integer(a(1:1)) :: b                  ! { dg-error "out of bounds" }
+  integer(a(1:1)) :: b                  ! { dg-error "Unclassifiable statement" }
 end

 ! { dg-prune-output "Parameter array" }