diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 3e4dfa2e0d90..c8ec87acdb11 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2008-04-16  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR fortran/35724
+	* iresolve.c (gfc_resolve_eoshift): Check for NULL symtree in test for
+	optional argument attribute.
+	
 2008-04-16  Paul Thomas  <pault@gcc.gnu.org>
 
 	PR fortran/35932
diff --git a/gcc/fortran/iresolve.c b/gcc/fortran/iresolve.c
index c166d8f2d603..2a3c6bd7283d 100644
--- a/gcc/fortran/iresolve.c
+++ b/gcc/fortran/iresolve.c
@@ -738,7 +738,8 @@ gfc_resolve_eoshift (gfc_expr *f, gfc_expr *array, gfc_expr *shift,
  
   if (dim != NULL)
     {
-      if (dim->expr_type != EXPR_CONSTANT && dim->symtree->n.sym->attr.optional)
+      if (dim->expr_type != EXPR_CONSTANT && dim->symtree != NULL
+	  && dim->symtree->n.sym->attr.optional)
 	{
 	  /* Mark this for later setting the type in gfc_conv_missing_dummy.  */
 	  dim->representation.length = shift->ts.kind;