diff --git a/rtengine/improccoordinator.cc b/rtengine/improccoordinator.cc
index 4bd1f2f48..570b6c56b 100644
--- a/rtengine/improccoordinator.cc
+++ b/rtengine/improccoordinator.cc
@@ -1441,6 +1441,8 @@ void ImProcCoordinator::process()
             || params.softlight != nextParams.softlight
             || params.raw != nextParams.raw
             || params.retinex != nextParams.retinex
+            || params.wavelet != nextParams.wavelet
+            
             || params.dirpyrequalizer != nextParams.dirpyrequalizer;
 
         params = nextParams;