diff --git a/js/JoistButton.js b/js/JoistButton.js
index 8c4873bd..d43a8bff 100644
--- a/js/JoistButton.js
+++ b/js/JoistButton.js
@@ -104,7 +104,7 @@ define( function( require ) {
         self.buttonModel.overProperty.value = true;
       },
       blur: function() {
-        self.buttonModel.overProperty.value = false;
+        self.buttonModel.a11yBlur();
       }
     } );
 
diff --git a/js/NavigationBarScreenButton.js b/js/NavigationBarScreenButton.js
index 39125ee2..15c8a9c2 100644
--- a/js/NavigationBarScreenButton.js
+++ b/js/NavigationBarScreenButton.js
@@ -114,7 +114,7 @@ define( function( require ) {
         self.buttonModel.overProperty.value = true;
       },
       blur: function() {
-        self.buttonModel.overProperty.value = false;
+        self.buttonModel.a11yBlur();
       }
     } );