diff --git a/Modules/Filtering/Wavelet/include/otbWaveletFilterBank.txx b/Modules/Filtering/Wavelet/include/otbWaveletFilterBank.txx
index 7753842f4bc8ed7eaa45035ed706543d8dee0f6c..b03e0fbb8b1eb3765edf96581489f18be4693dd6 100644
--- a/Modules/Filtering/Wavelet/include/otbWaveletFilterBank.txx
+++ b/Modules/Filtering/Wavelet/include/otbWaveletFilterBank.txx
@@ -1178,6 +1178,7 @@ WaveletFilterBank<TInputImage, TOutputImage, TWaveletOperator, Wavelet::INVERSE>
       typename FilterType::Pointer overSampledLowPass = FilterType::New();
       overSampledLowPass->SetInput(cropedLowPass);
       overSampledLowPass->SetSubsampleFactor(delta);
+	  overSampledLowPass->SetNumberOfThreads(1);
       overSampledLowPass->Update();
 
       InputImagePointerType cropedHighPass = InputImageType::New();
@@ -1196,6 +1197,7 @@ WaveletFilterBank<TInputImage, TOutputImage, TWaveletOperator, Wavelet::INVERSE>
       typename FilterType::Pointer overSampledHighPass = FilterType::New();
       overSampledHighPass->SetInput(cropedHighPass);
       overSampledHighPass->SetSubsampleFactor(delta);
+	  overSampledHighPass->SetNumberOfThreads(1);
       overSampledHighPass->Update();
 
       InnerProductType innerProduct;