diff --git a/test/Sema/array-init.c b/test/Sema/array-init.c
index a7f27b6..6925556 100644
--- a/test/Sema/array-init.c
+++ b/test/Sema/array-init.c
@@ -212,3 +212,7 @@
 void varArray() {
   int c[][x] = { 0 }; //expected-error{{variable-sized object may not be initialized}}
 }
+
+// PR2151
+int emptyInit() {struct {} x[] = {6};} //expected-warning{{empty struct extension}} expected-error{{initializer for aggregate with no elements}}
+