diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index 590da154..d5496943 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -30,3 +30,6 @@
 
 - Almar Klein
   Binary heap class for graph algorithms
+
+- Lee Kamentsky and Thouis Jones of the CellProfiler team, Broad Institute, MIT
+  Constant time per pixel median filter
diff --git a/scikits/image/filter/_ctmf.pyx b/scikits/image/filter/_ctmf.pyx
index 2b779470..c133d8d6 100644
--- a/scikits/image/filter/_ctmf.pyx
+++ b/scikits/image/filter/_ctmf.pyx
@@ -8,7 +8,7 @@ Website: http://www.cellprofiler.org
 Copyright (c) 2003-2009 Massachusetts Institute of Technology
 Copyright (c) 2009-2011 Broad Institute
 All rights reserved.
-Original author: Lee Kamentstky
+Original author: Lee Kamentsky
 '''
 import numpy as np
 cimport numpy as np
diff --git a/scikits/image/filter/ctmf.py b/scikits/image/filter/ctmf.py
index 9cb7e320..952fbc62 100644
--- a/scikits/image/filter/ctmf.py
+++ b/scikits/image/filter/ctmf.py
@@ -8,7 +8,7 @@ Website: http://www.cellprofiler.org
 Copyright (c) 2003-2009 Massachusetts Institute of Technology
 Copyright (c) 2009-2011 Broad Institute
 All rights reserved.
-Original author: Lee Kamentstky
+Original author: Lee Kamentsky
 '''
 
 import numpy as np