diff --git a/test/CFrontend/2003-11-27-UnionCtorInitialization.c b/test/CFrontend/2003-11-27-UnionCtorInitialization.c
new file mode 100644
index 00000000000..27a1ec7c5fc
--- /dev/null
+++ b/test/CFrontend/2003-11-27-UnionCtorInitialization.c
@@ -0,0 +1,14 @@
+struct i387_soft_struct {
+ long cwd;
+ long twd;
+ long fip;
+};
+union i387_union {
+ struct i387_soft_struct soft;
+};
+struct thread_struct {
+ union i387_union i387;
+};
+void _init_task_union(void) {
+  struct thread_struct thread = (struct thread_struct) { {{0}} };
+}