diff --git a/CHANGES b/CHANGES
index 54e7628f..f83432e3 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5,7 +5,10 @@ What's New for OpenJPEG
 ! : changed
 + : added
 
-January 18, 2001
+January 23, 2011
+* [antonin] move 'KK' definition from rs.h to rs.c to prevent duplicate symbol error when building jpwl with autotools.
+
+January 18, 2011
 ! [rdieter] cmake: SOVERSION change to 1 (from 1.4) to match auto-tools
 
 January 17, 2011
diff --git a/jpwl/rs.c b/jpwl/rs.c
index 419f0836..d699bee5 100644
--- a/jpwl/rs.c
+++ b/jpwl/rs.c
@@ -73,6 +73,9 @@
  */
 typedef int gf;
 
+/* KK = number of information symbols */
+static int	KK;
+
 /* Primitive polynomials - see Lin & Costello, Appendix A,
  * and  Lee & Messerschmitt, p. 453.
  */
diff --git a/jpwl/rs.h b/jpwl/rs.h
index 6d2ed59b..d3c573eb 100644
--- a/jpwl/rs.h
+++ b/jpwl/rs.h
@@ -55,11 +55,8 @@
  * each error counting as two erasures.
  */
 #define MM  8		/* RS code over GF(2**MM) - change to suit */
-//static int	KK;
-int	KK;
 
-/* Original code */
-/*#define KK  239*/		/* KK = number of information symbols */
+/* KK defined in rs.c */
 
 #define	NN ((1 << MM) - 1)