diff --git a/js/common/view/BallsNode.js b/js/common/view/BallsNode.js
index 77df6d69..12ca5c2e 100644
--- a/js/common/view/BallsNode.js
+++ b/js/common/view/BallsNode.js
@@ -1,4 +1,4 @@
-// Copyright -2017, University of Colorado Boulder
+// Copyright 2017, University of Colorado Boulder
 
 /**
  * Canvas Node that renders all the scenery balls
diff --git a/js/common/view/PegsNode.js b/js/common/view/PegsNode.js
index e4508293..20288b0c 100644
--- a/js/common/view/PegsNode.js
+++ b/js/common/view/PegsNode.js
@@ -1,4 +1,4 @@
-// Copyright -2017, University of Colorado Boulder
+// Copyright 2017, University of Colorado Boulder
 
 /**
  * Renders a triangular lattice of pegs for a Galton board.