diff --git a/.vim/spell/.gitattributes b/.vim/spell/.gitattributes
new file mode 100644
index 0000000..a0ef753
--- /dev/null
+++ b/.vim/spell/.gitattributes
@@ -0,0 +1 @@
+*.add merge=union
diff --git a/.vim/spell/.gitignore b/.vim/spell/.gitignore
new file mode 100644
index 0000000..307eeb8
--- /dev/null
+++ b/.vim/spell/.gitignore
@@ -0,0 +1,2 @@
+*.spl
+*.sug
diff --git a/.vim/spell/en.utf-8.add b/.vim/spell/en.utf-8.add
index 4ef0ce0..c866945 100644
--- a/.vim/spell/en.utf-8.add
+++ b/.vim/spell/en.utf-8.add
@@ -11,3 +11,4 @@ TiddlyWiki
 Royalton
 Pantek
 Crissy
+Trello
diff --git a/.vim/spell/en.utf-8.add.spl b/.vim/spell/en.utf-8.add.spl
deleted file mode 100644
index 800c227..0000000
Binary files a/.vim/spell/en.utf-8.add.spl and /dev/null differ
diff --git a/.vimrc b/.vimrc
index b7404b0..0ef6d15 100644
--- a/.vimrc
+++ b/.vimrc
@@ -107,6 +107,11 @@ Plug 'dense-analysis/ale'
 Plug 'godlygeek/tabular'
 Plug 'preservim/vim-markdown'
 
+" Vim Spellsync
+" Magically rebuild Vim spell files if word lists are modified outside of Vim
+" https://github.com/micarmst/vim-spellsync
+Plug 'micarmst/vim-spellsync'
+
 call plug#end()
 
 " ---------------------------------------------------------------------------------------------------------------------