diff --git a/test/Frontend/stdin.c b/test/Frontend/stdin.c
new file mode 100644
index 0000000..1b1bc67
--- /dev/null
+++ b/test/Frontend/stdin.c
@@ -0,0 +1,3 @@
+// RUN: clang -E - < /dev/null &> %t
+// RUN: grep '<predefines>' %t
+