diff --git a/src/play_clj/g2d_physics.clj b/src/play_clj/g2d_physics.clj
index 5c04058..70d66d6 100644
--- a/src/play_clj/g2d_physics.clj
+++ b/src/play_clj/g2d_physics.clj
@@ -193,7 +193,7 @@
   `(u/calls! ^EdgeShape (edge*) ~@options))
 
 (defmacro edge!
-  "Calls a single method on a `edge`"
+  "Calls a single method on an `edge`"
   [object k & options]
   `(u/call! ^EdgeShape ~object ~k ~@options))