diff --git a/libcxx/test/libcxx/utilities/exception_guard.odr.sh.cpp b/libcxx/test/libcxx/utilities/exception_guard.odr.sh.cpp
index 07bbdbb8bc2f0..cfdda9a9b99d4 100644
--- a/libcxx/test/libcxx/utilities/exception_guard.odr.sh.cpp
+++ b/libcxx/test/libcxx/utilities/exception_guard.odr.sh.cpp
@@ -6,6 +6,9 @@
 //
 //===----------------------------------------------------------------------===//
 
+// This test relies on `typeid` and thus requires `-frtti`.
+// UNSUPPORTED: no-rtti
+
 // Make sure that we don't get ODR violations with __exception_guard when
 // linking together TUs compiled with different values of -f[no-]exceptions.