diff --git a/init.fnl b/init.fnl
index e2edab5..8d17358 100644
--- a/init.fnl
+++ b/init.fnl
@@ -91,7 +91,7 @@
 (vim.filetype.add { :filename {
                       ".latexmkrc" :perl
                       "Jenkinsfile" :groovy }
-                    :extensions {
+                    :extension {
                       "nasm" :nasm
                       "h" :c
                       "ui" :xml }})