diff --git a/Code/BasicFilters/otbMaskMuParserFilter.txx b/Code/BasicFilters/otbMaskMuParserFilter.txx
index 66cf892fb73f159c131cacdf6a8ed2fec291648b..d5d1976c4403ac01883089226501f5ddf077fc63 100644
--- a/Code/BasicFilters/otbMaskMuParserFilter.txx
+++ b/Code/BasicFilters/otbMaskMuParserFilter.txx
@@ -90,7 +90,7 @@ const std::map<std::string, double*>& MaskMuParserFilter<TInputImage, TOutputIma
     }
   catch (itk::ExceptionObject& err)
     {
-    itkWarningMacro(<< err);
+    itkDebugMacro(<< err);
 
     }
 
@@ -118,7 +118,7 @@ bool MaskMuParserFilter<TInputImage, TOutputImage, TFunction>::CheckExpression()
     }
   catch (itk::ExceptionObject& err)
     {
-    itkWarningMacro(<< err);
+    itkDebugMacro(<< err);
     return false;
     }
   return true;