diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 5775ba64ac4..50d0ae21aad 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,8 @@
 2016-11-17  Jason Merrill  <jason@redhat.com>
 
+	PR c++/78369 - {} as default argument
+	* call.c (build_special_member_call): Handle CONSTRUCTOR.
+
 	PR c++/68377
 	* parser.c (cp_parser_fold_expression): Check TREE_NO_WARNING.
 
diff --git a/gcc/cp/call.c b/gcc/cp/call.c
index f6f45905162..d25e2e79f0b 100644
--- a/gcc/cp/call.c
+++ b/gcc/cp/call.c
@@ -8317,7 +8317,8 @@ build_special_member_call (tree instance, tree name, vec<tree, va_gc> **args,
       if (!reference_related_p (class_type, TREE_TYPE (arg)))
 	arg = perform_implicit_conversion_flags (class_type, arg,
 						 tf_warning, flags);
-      if (TREE_CODE (arg) == TARGET_EXPR
+      if ((TREE_CODE (arg) == TARGET_EXPR
+	   || TREE_CODE (arg) == CONSTRUCTOR)
 	  && (same_type_ignoring_top_level_qualifiers_p
 	      (class_type, TREE_TYPE (arg))))
 	{
diff --git a/gcc/testsuite/g++.dg/overload/defarg11.C b/gcc/testsuite/g++.dg/overload/defarg11.C
new file mode 100644
index 00000000000..26fac6ebe12
--- /dev/null
+++ b/gcc/testsuite/g++.dg/overload/defarg11.C
@@ -0,0 +1,11 @@
+// PR c++/78369
+// { dg-do compile { target c++11 } }
+
+struct A { };
+inline void f(struct A a = {})  {}
+
+int main()
+{
+  f();
+  return 0;
+}