diff --git a/ViewerManager/Model/otbImageViewerManagerModel.cxx b/ViewerManager/Model/otbImageViewerManagerModel.cxx
index 148517d0fb862b06803a53fd14bd1378237a2e2c..010523a48d6cc3068914754aa93bf09716f3feb2 100644
--- a/ViewerManager/Model/otbImageViewerManagerModel.cxx
+++ b/ViewerManager/Model/otbImageViewerManagerModel.cxx
@@ -240,6 +240,8 @@ ImageViewerManagerModel
   StandardRenderingFunctionType::ChannelListType channels;
   channels.resize(3);
   channels[0]=choice;
+  channels[1]=choice;
+  channels[2]=choice;
 
   StandardRenderingFunctionType::Pointer renderFunction;
   renderFunction = StandardRenderingFunctionType::New();