diff --git a/Code/ChangeDetection/otbCBAMIChangeDetector.h b/Code/ChangeDetection/otbCBAMIChangeDetector.h
index 11a35903842f11016bae16564cb6752af332154f..afe95fbae66bf5412e83c2c24ae56da85813e89d 100644
--- a/Code/ChangeDetection/otbCBAMIChangeDetector.h
+++ b/Code/ChangeDetection/otbCBAMIChangeDetector.h
@@ -53,7 +53,7 @@ namespace otb
  * \ingroup IntensityImageFilters Multithreaded
  */
 
-#define epsilon 0.01
+// #define EPSILON_VALUE_CBAMI 0.01
 
 namespace Functor
 {
@@ -93,6 +93,8 @@ public:
 
 protected:
 
+  static const double epsilon = 0.01;
+
   inline void normalizeInPlace(VectorType vx)
   {