diff --git a/README.md b/README.md
index 71021a5b..8747b6f1 100644
--- a/README.md
+++ b/README.md
@@ -345,7 +345,7 @@ FirebaseUI supports the following configuration parameters.
 <td>callbacks</td>
 <td>No</td>
 <td>
-  An object of developers <a href="#available-callbacks">callbacks</a> after
+  An object of developers' <a href="#available-callbacks">callbacks</a> after
   specific events.
   <br/>
   <em>Default:</em> <code>{}</code>