diff --git a/Code/Learning/otbConcatenateSampleListFilter.h b/Code/Learning/otbConcatenateSampleListFilter.h
index bddc14b58d5dc91bf8fc3d49f8f1fc0360a9559a..0662686345a15271e210d9d7cf14440d067dc27b 100644
--- a/Code/Learning/otbConcatenateSampleListFilter.h
+++ b/Code/Learning/otbConcatenateSampleListFilter.h
@@ -37,7 +37,7 @@ class ITK_EXPORT ConcatenateSampleListFilter :
 {
 public:
   /** Standard class typedefs */
-  typedef ConcatenateSampleListFilter            Self;
+  typedef ConcatenateSampleListFilter                Self;
   typedef otb::Statistics::ListSampleToListSampleFilter
   <TInputSampleList,TOutputSampleList>               Superclass;
   typedef itk::SmartPointer< Self >                  Pointer;
diff --git a/Code/Learning/otbConcatenateSampleListFilter.txx b/Code/Learning/otbConcatenateSampleListFilter.txx
index dfa3590366972ecdb2fdbff39677ff617f38c8d6..f82a9e33ee3d2195fa0faf8fb066d1aac7691c2d 100644
--- a/Code/Learning/otbConcatenateSampleListFilter.txx
+++ b/Code/Learning/otbConcatenateSampleListFilter.txx
@@ -69,7 +69,7 @@ ConcatenateSampleListFilter<TInputSampleList,TOutputSampleList>
   // Retrieve the ListSample
   typename InputSampleListObjectType::ConstPointer inputPtr =
     static_cast<InputSampleListObjectType *>(Superclass::ProcessObject::GetInput(inputIndex));
-  totalNumberOfSamples+=inputPtr->Get()->Size();
+  totalNumberOfSamples += inputPtr->Get()->Size();
   }
 
  // Set-up progress reporting