diff --git a/chaco/colormapped_scatterplot.py b/chaco/colormapped_scatterplot.py
index d10e0a0c0..56a47d6b9 100644
--- a/chaco/colormapped_scatterplot.py
+++ b/chaco/colormapped_scatterplot.py
@@ -152,7 +152,6 @@ def _gather_points(self):
             else:
                 color_data = self.color_data.get_data()
 
-            #color_nan_mask = isreal(color_data)
             color_nan_mask = invert(isnan(color_data))
 
             point_mask = point_mask & color_nan_mask