diff --git a/src/main/clojure/cljs/externs.clj b/src/main/clojure/cljs/externs.clj
index 71619e25c..a6d460eab 100644
--- a/src/main/clojure/cljs/externs.clj
+++ b/src/main/clojure/cljs/externs.clj
@@ -330,6 +330,8 @@
 
 (defn info
   "Helper for grabbing var info from an externs map.
+  Example:
+    (info externs '[Number isNaN])
 
   See `externs-map`"
   [externs props]