diff --git a/test/CFrontend/2002-07-30-VarArgsCallFailure.c b/test/CFrontend/2002-07-30-VarArgsCallFailure.c
new file mode 100644
index 00000000000..dfe9d63c1b2
--- /dev/null
+++ b/test/CFrontend/2002-07-30-VarArgsCallFailure.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+int tcount;
+void foo() {
+	char Buf[10];
+	sprintf(Buf, "n%%%d", tcount++);
+}