diff --git a/dlls/winemac.drv/cocoa_display.m b/dlls/winemac.drv/cocoa_display.m
index f64a6c0f6ad..6da0391e3fa 100644
--- a/dlls/winemac.drv/cocoa_display.m
+++ b/dlls/winemac.drv/cocoa_display.m
@@ -289,7 +289,7 @@ static int macdrv_get_gpus_from_metal(struct macdrv_gpu** new_gpus, int* count)
      * the primary GPU because we need to hide the integrated GPU for an automatic graphic switching pair to avoid apps
      * using the integrated GPU. This is the behavior of Windows on a Mac. */
     primary_device = [MTLCreateSystemDefaultDevice() autorelease];
-    if (macdrv_get_gpu_info_from_registry_id(&primary_gpu, primary_device.registryID))
+    if (macdrv_get_gpu_info_from_registry_id(&primary_gpu, (uint64_t)[primary_device registryID]))
         goto done;
 
     /* Hide the integrated GPU if the system default device is a dedicated GPU */
@@ -301,7 +301,7 @@ static int macdrv_get_gpus_from_metal(struct macdrv_gpu** new_gpus, int* count)
 
     for (i = 0; i < devices.count; i++)
     {
-        if (macdrv_get_gpu_info_from_registry_id(&gpus[gpu_count], devices[i].registryID))
+        if (macdrv_get_gpu_info_from_registry_id(&gpus[gpu_count], (uint64_t)[devices[i] registryID]))
             goto done;
 
         if (hide_integrated && devices[i].isLowPower)
@@ -354,7 +354,7 @@ static int macdrv_get_gpu_info_from_display_id_using_metal(struct macdrv_gpu* gp
 
     device = [CGDirectDisplayCopyCurrentMetalDevice(display_id) autorelease];
     if (device && [device respondsToSelector:@selector(registryID)])
-        ret = macdrv_get_gpu_info_from_registry_id(gpu, device.registryID);
+        ret = macdrv_get_gpu_info_from_registry_id(gpu, (uint64_t)[device registryID]);
 
 done:
     [pool release];