diff --git a/scripts/wk/hw/diags.py b/scripts/wk/hw/diags.py
index 7692b58c..ace8267c 100644
--- a/scripts/wk/hw/diags.py
+++ b/scripts/wk/hw/diags.py
@@ -1394,10 +1394,7 @@ def ost_generate_volume_report(dev):
 
   # OS Check
   if PLATFORM == 'Darwin':
-    vol_report = wk_os.mac.mount_disk(
-      device_path=dev.path,
-      read_write=False,
-      )
+    vol_report = wk_os.mac.mount_disk(device_path=dev.path)
   elif PLATFORM == 'Linux':
     vol_report = wk_os.linux.mount_volumes(
       device_path=dev.path,