diff --git a/DOC/Methods-Extern.md b/DOC/Methods-Extern.md
index bbf90192..0e8bb138 100644
--- a/DOC/Methods-Extern.md
+++ b/DOC/Methods-Extern.md
@@ -12,7 +12,7 @@ Overview of defined ID ranges
 -----------------------------
 
 ID       | Codec, Author                | 7-Zip Plugin Author
----------+------------------------------+----------------------
+---------|------------------------------|----------------------
 F7 0x xx | reserved                     |
 F7 10 xx | LZHAM, Rich Geldreich        | Rich Geldreich
 F7 11 01 | ZStandard, Yann Collet       | Tino Reichardt