diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index a0e74051040..90110ded59f 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,8 @@
+2013-02-28  Jason Merrill  <jason@redhat.com>
+
+	PR c++/56243
+	* call.c (build_over_call): Avoid virtual lookup in a template.
+
 2013-02-27  Jason Merrill  <jason@redhat.com>
 
 	PR c++/56358
diff --git a/gcc/cp/call.c b/gcc/cp/call.c
index 7c414217f05..4eb38ec73e9 100644
--- a/gcc/cp/call.c
+++ b/gcc/cp/call.c
@@ -7033,7 +7033,10 @@ build_over_call (struct z_candidate *cand, int flags, tsubst_flags_t complain)
   if (!already_used)
     mark_used (fn);
 
-  if (DECL_VINDEX (fn) && (flags & LOOKUP_NONVIRTUAL) == 0)
+  if (DECL_VINDEX (fn) && (flags & LOOKUP_NONVIRTUAL) == 0
+      /* Don't mess with virtual lookup in fold_non_dependent_expr; virtual
+	 functions can't be constexpr.  */
+      && !in_template_function ())
     {
       tree t;
       tree binfo = lookup_base (TREE_TYPE (TREE_TYPE (argarray[0])),
diff --git a/gcc/testsuite/g++.dg/template/virtual4.C b/gcc/testsuite/g++.dg/template/virtual4.C
new file mode 100644
index 00000000000..a2c7420b402
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/virtual4.C
@@ -0,0 +1,30 @@
+// PR c++/56243
+
+struct A
+{
+  virtual int String ();
+};
+
+struct F: A { };
+
+struct G
+{
+  F value;
+};
+
+struct D
+{
+  template <int>
+  void Verify()
+  {
+    G x;
+    F& name = x.value;
+    name.String();
+  }
+};
+
+int main()
+{
+  D d;
+  d.Verify<42>();
+}