diff --git a/test/SILOptimizer/string_switch.swift b/test/SILOptimizer/string_switch.swift
index 933c78d3fca41..d563a580cba98 100644
--- a/test/SILOptimizer/string_switch.swift
+++ b/test/SILOptimizer/string_switch.swift
@@ -2,6 +2,7 @@
 // RUN: %target-build-swift -O %s -module-name=test -Xllvm -sil-disable-pass=FunctionSignatureOpts -emit-sil | %FileCheck %s
 // RUN: %target-run %t.out
 // UNSUPPORTED: nonatomic_rc
+// UNSUPPORTED: resilient_stdlib
 
 import StdlibUnittest