diff --git a/src/google/protobuf/map.h b/src/google/protobuf/map.h
index e84ca694dd43..83a3cf20f6e7 100644
--- a/src/google/protobuf/map.h
+++ b/src/google/protobuf/map.h
@@ -25,7 +25,7 @@
 #include <utility>
 
 #if !defined(GOOGLE_PROTOBUF_NO_RDTSC) && defined(__APPLE__)
-#include <mach/mach_time.h>
+#include <time.h>
 #endif
 
 #include "google/protobuf/stubs/common.h"
@@ -691,7 +691,7 @@ class PROTOBUF_EXPORT UntypedMapBase {
 #if defined(__APPLE__)
     // Use a commpage-based fast time function on Apple environments (MacOS,
     // iOS, tvOS, watchOS, etc).
-    s += mach_absolute_time();
+    s = clock_gettime_nsec_np(CLOCK_UPTIME_RAW);
 #elif defined(__x86_64__) && defined(__GNUC__)
     uint32_t hi, lo;
     asm volatile("rdtsc" : "=a"(lo), "=d"(hi));