diff --git a/Makefile b/Makefile
index ecd36e7..a964f98 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 FILES = bashrc bash_profile vimrc zshrc gitconfig screenrc commonshrc liquidpromptrc \
 	gnomerc gvimrc muttrc pentadactylrc mailcap latexmkrc ctags \
 	i3/config i3status.conf msmtprc spacemacs emacs.d mbsyncrc authinfo \
-	config/qutebrowser config/nvim/init.vim ideavimrc \
+	config/qutebrowser config/nvim/init.vim ideavimrc agignore \
 	$(wildcard sbt/0.13/plugins/*.sbt)
 
 .PHONY: install clean check
diff --git a/agignore b/agignore
new file mode 100644
index 0000000..58ffbbd
--- /dev/null
+++ b/agignore
@@ -0,0 +1 @@
+configuration-lts-*.nix