diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..3759b29d
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+# Use an approximate language for syntax highlighting (clojure is pretty close)
+*.janet linguist-language=clojure
diff --git a/tools/cook.janet b/tools/cook.janet
index cc61088f..61653b4b 100644
--- a/tools/cook.janet
+++ b/tools/cook.janet
@@ -34,7 +34,7 @@
   [f1 f2]
   "Check if f1 is newer than f2. Used for checking if a file should be updated."
   (if is-win true
-    (zero? (os/shell (string "[ " f1 " -ot " f2 " ]")))))
+    (not (zero? (os/shell (string "[ " f1 " -nt " f2 " ]"))))))
 
 (defn- older-than-some
   [f others]