diff --git a/AsyncDisplayKit/ASLayoutableInspectorNode.h b/AsyncDisplayKit/ASLayoutableInspectorNode.h
index 4386474b..4e924f9f 100644
--- a/AsyncDisplayKit/ASLayoutableInspectorNode.h
+++ b/AsyncDisplayKit/ASLayoutableInspectorNode.h
@@ -10,7 +10,7 @@
 
 @protocol ASLayoutableInspectorNodeDelegate <NSObject>
 
-- (void)toggleVizualization:(BOOL)toggle;
+- (void)toggleVisualization:(BOOL)toggle;
 
 @end 
 
diff --git a/AsyncDisplayKit/ASLayoutableInspectorNode.m b/AsyncDisplayKit/ASLayoutableInspectorNode.m
index a2fe0fc9..2b9c12f6 100644
--- a/AsyncDisplayKit/ASLayoutableInspectorNode.m
+++ b/AsyncDisplayKit/ASLayoutableInspectorNode.m
@@ -348,14 +348,14 @@
 //  
 //  if (newState == YES) {
 //    self.vizNodeInsetSize = 0;
-//    [self.delegate toggleVizualization:NO];   // FIXME
-//    [self.delegate toggleVizualization:YES];   // FIXME
+//    [self.delegate toggleVisualization:NO];   // FIXME
+//    [self.delegate toggleVisualization:YES];   // FIXME
 //    _vizNodeBordersBtn.selected = YES;
 //    
 //  } else {
 //    self.vizNodeInsetSize = 10;
-//    [self.delegate toggleVizualization:NO];   // FIXME
-//    [self.delegate toggleVizualization:YES];   // FIXME
+//    [self.delegate toggleVisualization:NO];   // FIXME
+//    [self.delegate toggleVisualization:YES];   // FIXME
 //  }
 //  
 //  sender.selected = newState;
@@ -365,7 +365,7 @@
 //{
 //  BOOL newState = !sender.selected;
 //  
-//  [self.delegate toggleVizualization:newState];   // FIXME
+//  [self.delegate toggleVisualization:newState];   // FIXME
 //
 //  sender.selected = newState;
 //}
diff --git a/examples/ASLayoutSpecPlayground/Sample/ViewController.m b/examples/ASLayoutSpecPlayground/Sample/ViewController.m
index 6961e34a..3a915d52 100644
--- a/examples/ASLayoutSpecPlayground/Sample/ViewController.m
+++ b/examples/ASLayoutSpecPlayground/Sample/ViewController.m
@@ -55,11 +55,10 @@
 
 #pragma mark - ASLayoutableInspectorNodeDelegate
 
-- (void)toggleVizualization:(BOOL)toggle            // FIXME: this doesn't work currently
+- (void)toggleVisualization:(BOOL)toggle
 {
   NSLog(@"shouldVisualizeLayoutSpecs:%d", toggle);
-  [self.node shouldVisualizeLayoutSpecs:toggle];
-  [self.view setNeedsLayout];
+  [self.node setShouldVisualizeLayoutSpecs:toggle];
 }
 
 @end