diff --git a/app/src/processing/app/ChangeDetector.java b/app/src/processing/app/ChangeDetector.java
index 907c27101..8b5abfebd 100644
--- a/app/src/processing/app/ChangeDetector.java
+++ b/app/src/processing/app/ChangeDetector.java
@@ -14,8 +14,7 @@ public class ChangeDetector implements WindowFocusListener {
   private Editor editor;
 
 //  private boolean enabled = true;
-  //REMOVE on for testing
-  private boolean enabled = true; // broken on OS X
+  private boolean enabled = true; // broken on OS X (possibly fixed? tested and it seems to work)
 
   private boolean skip = false;
 
diff --git a/app/src/processing/app/Sketch.java b/app/src/processing/app/Sketch.java
index 8d138bb14..e249218a5 100644
--- a/app/src/processing/app/Sketch.java
+++ b/app/src/processing/app/Sketch.java
@@ -1210,14 +1210,9 @@ public class Sketch {
     current = code[which];
     currentIndex = which;
     current.visited = System.currentTimeMillis();
-    //REMOVE 
-    try {
       editor.setCode(current);
-//    editor.header.rebuild();
+//editor.header.rebuild();
       editor.header.repaint();
-    } catch (NullPointerException e) {
-      //e.printStackTrace();
-    }
   }