diff --git a/Appl/CEP/CS1/CS1_BandpassCorrector/include/CS1_BandpassCorrector/CorrectorProcessControl.h b/Appl/CEP/CS1/CS1_BandpassCorrector/include/CS1_BandpassCorrector/CorrectorProcessControl.h
index eeee3f706e6241e4c19b06f01d6cf2e068d80ef0..37db9c6ac570a00602a8912c80ae363d3b00b9a2 100644
--- a/Appl/CEP/CS1/CS1_BandpassCorrector/include/CS1_BandpassCorrector/CorrectorProcessControl.h
+++ b/Appl/CEP/CS1/CS1_BandpassCorrector/include/CS1_BandpassCorrector/CorrectorProcessControl.h
@@ -38,6 +38,7 @@ namespace LOFAR
     {
     private:
       std::string  itsMS;
+      bool         itsFixed;
       int          itsWindow;
       MS_File*              myMS;
       BandpassCorrector* itsCorrector;