diff --git a/src/connect.c b/src/connect.c
index 9de26a8..f5357cb 100644
--- a/src/connect.c
+++ b/src/connect.c
@@ -2918,7 +2918,19 @@ int nw_modify_max_right_mask(int dir_handle, uint8 *data, int len,
   old_mask = tru_get_inherited_mask(nwpath.volume, unname, &stbuff);
   new_mask = (old_mask | (grant_mask & 0xff)) & (~revoke_mask & 0xff);
 
-  return tru_set_inherited_mask(nwpath.volume, unname, &stbuff, new_mask);
+  result = tru_set_inherited_mask(nwpath.volume, unname, &stbuff, new_mask);
+  if (!result) {
+    int verify_mask = tru_get_inherited_mask(nwpath.volume, unname, &stbuff);
+    XDPRINTF((1, 0, "NCP22/4 Modify Max Right Mask: path=`%s`, old=0x%02x, grant=0x%02x, revoke=0x%02x, new=0x%02x, verify=0x%02x",
+              unname,
+              old_mask & 0xff,
+              grant_mask & 0xff,
+              revoke_mask & 0xff,
+          new_mask & 0xff,
+              verify_mask & 0xff));
+  }
+
+  return result;
 }
 
 int nw_scan_user_trustee(int volume, int *sequence, uint32 id,