diff --git a/rc/detection/file.kak b/rc/detection/file.kak
index 55fca1c8..2c2f8781 100644
--- a/rc/detection/file.kak
+++ b/rc/detection/file.kak
@@ -7,8 +7,10 @@ hook global BufOpenFile .* %{ evaluate-commands %sh{
             image/*+xml) filetype="xml" ;; #SVG
             message/rfc822) filetype="mail" ;;
             text/x-shellscript) filetype="sh" ;;
+            text/x-script.*) filetype="${mime#text/x-script.}" ;;
             text/x-*) filetype="${mime#text/x-}" ;;
             text/*)   filetype="${mime#text/}" ;;
+            application/x-*) filetype="${mime#application/x-}" ;;
             application/*) filetype="${mime#application/}" ;;
         esac
         if [ -n "${filetype}" ]; then