diff --git a/libcxx/test/libcxx/utilities/utility/__murmur2_or_cityhash.pass.cpp b/libcxx/test/libcxx/utilities/utility/__murmur2_or_cityhash.pass.cpp
--- a/libcxx/test/libcxx/utilities/utility/__murmur2_or_cityhash.pass.cpp
+++ b/libcxx/test/libcxx/utilities/utility/__murmur2_or_cityhash.pass.cpp
@@ -21,10 +21,10 @@
 #endif
 
 std::string CityHash[] = {
-    {/* "abcdefgh" */ "\x61\x62\x63\x64\x65\x66\x67\x68"},
-    {/* "abcDefgh" */ "\x61\x62\x63\x44\x65\x66\x67\x68"},
-    {/* "CityHash" */ "\x43\x69\x74\x79\x48\x61\x73\x68"},
-    {/* "CitYHash" */ "\x43\x69\x74\x59\x48\x61\x73\x68"},
+    {/* "abcdefgh" */ 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68},
+    {/* "abcDefgh" */ 0x61, 0x62, 0x63, 0x44, 0x65, 0x66, 0x67, 0x68},
+    {/* "CityHash" */ 0x43, 0x69, 0x74, 0x79, 0x48, 0x61, 0x73, 0x68},
+    {/* "CitYHash" */ 0x43, 0x69, 0x74, 0x59, 0x48, 0x61, 0x73, 0x68},
 };
 
 int main(int, char**) {