diff --git a/ntoskrnl/fstub/fstubex.c b/ntoskrnl/fstub/fstubex.c
index b9be7fa4e16..922aee7d8de 100644
--- a/ntoskrnl/fstub/fstubex.c
+++ b/ntoskrnl/fstub/fstubex.c
@@ -76,8 +76,6 @@ typedef struct _MASTER_BOOT_RECORD
     USHORT MasterBootRecordMagic;             // 510
 } MASTER_BOOT_RECORD, *PMASTER_BOOT_RECORD;
 
-/* Tag for Fstub allocations */
-#define TAG_FSTUB 'BtsF'
 /* Partition entry size (bytes) - FIXME: It's hardcoded as Microsoft does, but according to specs, it shouldn't be */
 #define PARTITION_ENTRY_SIZE 128
 /* Defines "EFI PART" */
diff --git a/ntoskrnl/include/internal/tag.h b/ntoskrnl/include/internal/tag.h
index dc47c9cd4f4..4b36524ea5d 100644
--- a/ntoskrnl/include/internal/tag.h
+++ b/ntoskrnl/include/internal/tag.h
@@ -190,3 +190,6 @@
 
 #define TAG_WAIT            'tiaW'
 #define TAG_SEC_QUERY       'qSbO'
+
+/* FSTUB */
+#define TAG_FSTUB 'BtsF'