diff --git a/include/otbSARFFTCorrelationGridImageFilter.h b/include/otbSARFFTCorrelationGridImageFilter.h
index 0cd6cb9dc486e0a8185ba798553300e3264e7af0..4663fa140ea473e4afbd798ce5fdc73c0e821950 100644
--- a/include/otbSARFFTCorrelationGridImageFilter.h
+++ b/include/otbSARFFTCorrelationGridImageFilter.h
@@ -104,8 +104,6 @@ namespace otb
     using Point2DType = itk::Point<double,2>;
     using Point3DType = itk::Point<double,3>;
 
-    typedef otb::DEMHandler DEMHandlerType;
-
     // Define Filter used here (ie : RSTRansform from Master to Slave)
     typedef typename otb::GenericRSTransform<double,2,2>                                    RSTransformType2D;
     typedef typename itk::MinimumMaximumImageCalculator< ImageInType>			    MinMaxCalculatorType;
@@ -164,9 +162,6 @@ namespace otb
     /** Get the inputs */
     const ImageInType * GetMasterInput() const;
     const ImageInType * GetSlaveInput() const;
-
-    /** Activate the DEM */
-    void activateDEM(const std::string DEMdirectory);
   
   protected:
     // Constructor
diff --git a/include/otbSARFFTCorrelationGridImageFilter.txx b/include/otbSARFFTCorrelationGridImageFilter.txx
index cf6904592d4af701cba814d97f42ec5e0ae8dc5f..51ee79c706107bcda68e2a9274760b37802f7a79 100644
--- a/include/otbSARFFTCorrelationGridImageFilter.txx
+++ b/include/otbSARFFTCorrelationGridImageFilter.txx
@@ -31,8 +31,6 @@
 #include "itkNumericTraitsPointPixel.h"
 #include "itkContinuousIndex.h"
 
-#include "otbDEMHandler.h"
-
 #include "itkFFTWCommon.h"
 #include "itkFFTWGlobalConfiguration.h"
 
@@ -135,19 +133,6 @@ namespace otb
     os << indent << "Step for the grid : " << m_GridStep[0] << ", " << m_GridStep[1] << std::endl;
   }
 
-  /**
-   * activateDEM
-   */
-  template<class TImageIn, class TImageOut>
-  void
-  SARFFTCorrelationGridImageFilter< TImageIn, TImageOut >
-  ::activateDEM(const std::string DEMDirectory)
-  {
-    auto & DEMHandler = DEMHandler::GetInstance();
-    DEMHandler.ClearDEMs();
-    DEMHandler.OpenDEMDirectory(DEMDirectory);
-  }
-
   /**
    * Method GenerateOutputInformaton()
    **/
diff --git a/include/otbSARTemporalCorrelationGridImageFilter.txx b/include/otbSARTemporalCorrelationGridImageFilter.txx
index a341f17b0c18b2a58cdd7a1fb0c0685a442c8090..27e09fc12942a48fe584eff97db0acf089307365 100644
--- a/include/otbSARTemporalCorrelationGridImageFilter.txx
+++ b/include/otbSARTemporalCorrelationGridImageFilter.txx
@@ -31,8 +31,6 @@
 #include "itkNumericTraitsPointPixel.h"
 #include "itkContinuousIndex.h"
 
-#include "otbDEMHandler.h"
-
 #include "itkFFTWCommon.h"
 #include "itkFFTWGlobalConfiguration.h"