diff --git a/test/Parser/struct-recursion.c b/test/Parser/struct-recursion.c
new file mode 100644
index 0000000..c16f9fc
--- /dev/null
+++ b/test/Parser/struct-recursion.c
@@ -0,0 +1,11 @@
+// RUN: clang %s -fsyntax-only
+
+// C99 6.7.2.3p11
+
+// mutually recursive structs
+struct s1 { struct s2 *A; };
+struct s2 { struct s1 *B; };
+
+// both types are complete now.
+struct s1 a;
+struct s2 b;