diff --git a/include/ntapi/nt_istat.h b/include/ntapi/nt_istat.h
index ade7404..f1a9b24 100644
--- a/include/ntapi/nt_istat.h
+++ b/include/ntapi/nt_istat.h
@@ -34,12 +34,4 @@ typedef int32_t __stdcall ntapi_tt_istat(
 	__in	uint32_t		buffer_size,
 	__in	uint32_t		flags);
 
-
-typedef int32_t __stdcall ntapi_tt_validate_fs_handle(
-	__in	void *		hfile,
-	__in	uint32_t	dev_name_hash,
-	__in	nt_fii		fii,
-	__out	uintptr_t *	buffer,
-	__in	uint32_t	buffer_size);
-
 #endif
diff --git a/include/ntapi/ntapi.h b/include/ntapi/ntapi.h
index ea4f4b9..5b19340 100644
--- a/include/ntapi/ntapi.h
+++ b/include/ntapi/ntapi.h
@@ -562,7 +562,6 @@ typedef struct _ntapi_vtbl {
 
 	/* nt_istat.h */
 	ntapi_tt_istat *				tt_istat;
-	ntapi_tt_validate_fs_handle *			tt_validate_fs_handle;
 
 	/* nt_stat.h */
 	ntapi_tt_stat *					tt_stat;
diff --git a/src/fs/ntapi_tt_istat.c b/src/fs/ntapi_tt_istat.c
index 83c7f9a..5e6df3d 100644
--- a/src/fs/ntapi_tt_istat.c
+++ b/src/fs/ntapi_tt_istat.c
@@ -126,30 +126,3 @@ int32_t __stdcall __ntapi_tt_istat(
 
 	return status;
 }
-
-
-int32_t __stdcall __ntapi_tt_validate_fs_handle(
-	__in	void *		hfile,
-	__in	uint32_t	dev_name_hash,
-	__in	nt_fii		fii,
-	__out	uintptr_t *	buffer,
-	__in	uint32_t	buffer_size)
-{
-	int32_t		status;
-	nt_istat	istat;
-
-	status = __ntapi->tt_istat(
-		hfile,
-		&istat,sizeof(istat),
-		buffer,buffer_size,
-		NT_ISTAT_DEFAULT);
-
-	if (status) return status;
-
-	if (istat.fii.index_number.quad != fii.index_number.quad)
-		return NT_STATUS_CONTEXT_MISMATCH;
-	else if (istat.dev_name_hash != dev_name_hash)
-		return NT_STATUS_CONTEXT_MISMATCH;
-
-	return NT_STATUS_SUCCESS;
-}
diff --git a/src/internal/ntapi.c b/src/internal/ntapi.c
index e491bff..a4f6ac8 100644
--- a/src/internal/ntapi.c
+++ b/src/internal/ntapi.c
@@ -330,7 +330,6 @@ static int32_t __fastcall __ntapi_init_once(ntapi_vtbl ** pvtbl)
 
 	/* nt_istat.h */
 	__ntapi->tt_istat					= __ntapi_tt_istat;
-	__ntapi->tt_validate_fs_handle				= __ntapi_tt_validate_fs_handle;
 
 	/* nt_stat.h */
 	__ntapi->tt_stat 					= __ntapi_tt_stat;
diff --git a/src/internal/ntapi_fnapi.h b/src/internal/ntapi_fnapi.h
index 8715b7a..6b90734 100644
--- a/src/internal/ntapi_fnapi.h
+++ b/src/internal/ntapi_fnapi.h
@@ -231,7 +231,6 @@ ntapi_tt_get_dos_drive_letter_from_device	__ntapi_tt_get_dos_drive_letter_from_d
 
 /* nt_istat.h */
 ntapi_tt_istat					__ntapi_tt_istat;
-ntapi_tt_validate_fs_handle			__ntapi_tt_validate_fs_handle;
 
 /* nt_stat.h */
 ntapi_tt_stat					__ntapi_tt_stat;