diff --git a/include/util/packed_vector.hpp b/include/util/packed_vector.hpp
index c6c08b86c26..fcd74fc0980 100644
--- a/include/util/packed_vector.hpp
+++ b/include/util/packed_vector.hpp
@@ -16,7 +16,7 @@
 #include <vector>
 
 #if defined(_MSC_VER)
-// for `InterlockedCompareExchange`
+// for `InterlockedCompareExchange64`
 #include <windows.h>
 #endif
 
@@ -95,7 +95,7 @@ inline WordT set_upper_value(WordT word, WordT mask, std::uint8_t offset, T valu
 inline bool compare_and_swap(uint64_t *ptr, uint64_t old_value, uint64_t new_value)
 {
 #if defined(_MSC_VER)
-    return InterlockedCompareExchange(ptr, new_value, old_value) != old_value;
+    return InterlockedCompareExchange64(ptr, new_value, old_value) == old_value;
 #elif defined(__GNUC__)
     return __sync_bool_compare_and_swap(ptr, old_value, new_value);
 #else