diff --git a/Source/common/SantaCacheTest.mm b/Source/common/SantaCacheTest.mm
index 528f23e6a..0c800210b 100644
--- a/Source/common/SantaCacheTest.mm
+++ b/Source/common/SantaCacheTest.mm
@@ -14,6 +14,7 @@
 
 #import <XCTest/XCTest.h>
 
+#include <compare>
 #include <numeric>
 #include <string>
 #include <vector>
@@ -245,9 +246,7 @@ - (void)testCompareAndSwap {
   uint64_t first_val;
   uint64_t second_val;
 
-  bool operator==(const S &rhs) {
-    return first_val == rhs.first_val && second_val == rhs.second_val;
-  }
+  auto operator<=>(const S &rhs) const = default;
 };
 template <>
 uint64_t SantaCacheHasher<S>(S const &s) {