diff --git a/.config/nvim/spell/en.utf-8.add b/.config/nvim/spell/en.utf-8.add
index 79c6f7f4..b4d8a46a 100644
--- a/.config/nvim/spell/en.utf-8.add
+++ b/.config/nvim/spell/en.utf-8.add
@@ -143,3 +143,4 @@ Neovim's
 NSERC
 Duval
 mechatronics
+M2M
diff --git a/.config/nvim/spell/en.utf-8.add.spl b/.config/nvim/spell/en.utf-8.add.spl
index 1723de68..e57020e9 100644
Binary files a/.config/nvim/spell/en.utf-8.add.spl and b/.config/nvim/spell/en.utf-8.add.spl differ