diff --git i/src/flb_utils.c w/src/flb_utils.c
index 87637f1331d7..7a0036566438 100644
--- i/src/flb_utils.c
+++ w/src/flb_utils.c
@@ -1424,11 +1424,11 @@ int flb_utils_get_machine_id(char **out_id, size_t *out_size)
         return 0;
     }
 #elif defined (FLB_SYSTEM_MACOS)
     bool bret;
     CFStringRef serialNumber;
-    io_service_t platformExpert = IOServiceGetMatchingService(kIOMainPortDefault,
+    io_service_t platformExpert = IOServiceGetMatchingService(kIOMasterPortDefault,
         IOServiceMatching("IOPlatformExpertDevice"));

     if (platformExpert) {
         CFTypeRef serialNumberAsCFString =
             IORegistryEntryCreateCFProperty(platformExpert,