diff --git a/clang/test/Index/annotate-comments-unterminated.c b/clang/test/Index/annotate-comments-unterminated.c
new file mode 100644
index 000000000000..d72822a0938b
--- /dev/null
+++ b/clang/test/Index/annotate-comments-unterminated.c
@@ -0,0 +1,13 @@
+// RUN: c-index-test -test-load-source all %s | FileCheck %s
+// RUN: %clang_cc1 -fsyntax-only %s 2>&1 | FileCheck -check-prefix=ERR %s
+
+// CHECK: annotate-comments-unterminated.c:9:5: VarDecl=x:{{.*}} RawComment=[/** Aaa. */]{{.*}} BriefComment=[ Aaa. \n]
+// CHECK: annotate-comments-unterminated.c:11:5: VarDecl=y:{{.*}} RawComment=[/**< Bbb. */]{{.*}} BriefComment=[ Bbb. \n]
+// CHECK-ERR: error: unterminated
+
+/** Aaa. */
+int x;
+
+int y; /**< Bbb. */
+/**< Ccc.
+ * Ddd.