diff --git a/ignore/src/types.rs b/ignore/src/types.rs
index 00cf515..dfcf5cf 100644
--- a/ignore/src/types.rs
+++ b/ignore/src/types.rs
@@ -141,6 +141,7 @@ const DEFAULT_TYPES: &'static [(&'static str, &'static [&'static str])] = &[
     ]),
     ("json", &["*.json"]),
     ("jsonl", &["*.jsonl"]),
+    ("kotlin", &["*.kt", "*.kts"]),
     ("less", &["*.less"]),
     ("lisp", &["*.el", "*.jl", "*.lisp", "*.lsp", "*.sc", "*.scm"]),
     ("lua", &["*.lua"]),