diff --git a/example/src/ofApp.cpp b/example/src/ofApp.cpp
index 455331b..c71f9fb 100755
--- a/example/src/ofApp.cpp
+++ b/example/src/ofApp.cpp
@@ -9,8 +9,8 @@ void ofApp::setup() {
     // a surface in XML settings.
     crossSource = new CrossSource();
     customSource = new CustomSource();
-    piMapper.addFboSource(*crossSource);
-    piMapper.addFboSource(*customSource);
+    piMapper.registerFboSource(*crossSource);
+    piMapper.registerFboSource(*customSource);
     piMapper.setup();
     
     // The info layer is hidden by default, press <i> to toggle