diff --git a/ftplugin/nasm.vim b/ftplugin/nasm.vim
new file mode 100644
index 0000000..032957c
--- /dev/null
+++ b/ftplugin/nasm.vim
@@ -0,0 +1 @@
+setlocal colorcolumn=81
diff --git a/ftplugin/perl.vim b/ftplugin/perl.vim
index c16d17e..3371995 100644
--- a/ftplugin/perl.vim
+++ b/ftplugin/perl.vim
@@ -1,3 +1,4 @@
+setlocal colorcolumn=81
 setlocal tabstop=4
 setlocal shiftwidth=4
 setlocal textwidth=80