diff --git a/winsup/cygwin/mount.cc b/winsup/cygwin/mount.cc
index df96c2dc2..569328fd7 100644
--- a/winsup/cygwin/mount.cc
+++ b/winsup/cygwin/mount.cc
@@ -431,10 +431,6 @@ fs_info::update (PUNICODE_STRING upath, HANDLE in_vol)
 	     only support this if the filename is non-null and the handle is
 	     the handle to a directory. NcFsd IR10 is supposed to be ok. */
 	  has_buggy_reopen (is_netapp () || is_nwfs ());
-	  /* Netapp and Parallels Desktop FS have problems with the
-	     FileNetworkOpenInformation info class.  Netapp doesn't
-	     implement it at all, Parallels always returns a size of 0. */
-	  has_broken_fnoi (is_netapp () || is_prlfs ());
 	}
     }
   if (!got_fs ()
diff --git a/winsup/cygwin/mount.h b/winsup/cygwin/mount.h
index c78fbc137..172a0b03b 100644
--- a/winsup/cygwin/mount.h
+++ b/winsup/cygwin/mount.h
@@ -76,7 +76,6 @@ class fs_info
     unsigned has_buggy_fileid_dirinfo	: 1;
     unsigned has_buggy_basic_info	: 1;
     unsigned has_dos_filenames_only	: 1;
-    unsigned has_broken_fnoi		: 1;
   } status;
   ULONG sernum;			/* Volume Serial Number */
   char fsn[80];			/* Windows filesystem name */
@@ -102,7 +101,6 @@ class fs_info
   IMPLEMENT_STATUS_FLAG (bool, has_buggy_fileid_dirinfo)
   IMPLEMENT_STATUS_FLAG (bool, has_buggy_basic_info)
   IMPLEMENT_STATUS_FLAG (bool, has_dos_filenames_only)
-  IMPLEMENT_STATUS_FLAG (bool, has_broken_fnoi)
   IMPLEMENT_FS_FLAG (fat)
   IMPLEMENT_FS_FLAG (ntfs)
   IMPLEMENT_FS_FLAG (refs)
diff --git a/winsup/cygwin/path.h b/winsup/cygwin/path.h
index 730f943c9..23139a643 100644
--- a/winsup/cygwin/path.h
+++ b/winsup/cygwin/path.h
@@ -158,7 +158,6 @@ class path_conv
   int has_buggy_reopen () const {return fs.has_buggy_reopen ();}
   int has_buggy_fileid_dirinfo () const {return fs.has_buggy_fileid_dirinfo ();}
   int has_buggy_basic_info () const {return fs.has_buggy_basic_info ();}
-  int has_broken_fnoi () const {return fs.has_broken_fnoi ();}
   int binmode () const
   {
     if (path_flags & PATH_BINARY)