diff --git a/ConvertImageND.cxx b/ConvertImageND.cxx
index 75bfcc1..5b46659 100644
--- a/ConvertImageND.cxx
+++ b/ConvertImageND.cxx
@@ -117,6 +117,8 @@
 #include "WeightedSumVoxelwise.h"
 #include "WrapDimension.h"
 
+#include "vcl_legacy_aliases.h"
+
 #include <cstring>
 #include <algorithm>
 #include <iostream>
diff --git a/adapters/ApplyMetric.cxx b/adapters/ApplyMetric.cxx
index 6185c16..a047527 100644
--- a/adapters/ApplyMetric.cxx
+++ b/adapters/ApplyMetric.cxx
@@ -40,6 +40,7 @@
 #include <vnl/vnl_inverse.h>
 #include <vnl/algo/vnl_matrix_inverse.h>
 
+#include "vcl_legacy_aliases.h"
 
 template <class TPixel, unsigned int VDim>
 void
diff --git a/adapters/BiasFieldCorrectionN4.cxx b/adapters/BiasFieldCorrectionN4.cxx
index 213124d..ab4abd0 100644
--- a/adapters/BiasFieldCorrectionN4.cxx
+++ b/adapters/BiasFieldCorrectionN4.cxx
@@ -34,6 +34,8 @@
 #include "itkOtsuThresholdImageFilter.h"
 #include "itkShrinkImageFilter.h"
 
+#include "vcl_legacy_aliases.h"
+
 template <class TPixel, unsigned int VDim>
 void
 BiasFieldCorrectionN4<TPixel, VDim>
diff --git a/adapters/ReplaceIntensities.cxx b/adapters/ReplaceIntensities.cxx
index 8d3886e..99d69f7 100644
--- a/adapters/ReplaceIntensities.cxx
+++ b/adapters/ReplaceIntensities.cxx
@@ -25,6 +25,8 @@
 
 #include "ReplaceIntensities.h"
 
+#include "vcl_legacy_aliases.h"
+
 template <class TPixel, unsigned int VDim>
 void
 ReplaceIntensities<TPixel, VDim>
diff --git a/adapters/SplitMultilabelImage.cxx b/adapters/SplitMultilabelImage.cxx
index 8f68f19..45a8db5 100644
--- a/adapters/SplitMultilabelImage.cxx
+++ b/adapters/SplitMultilabelImage.cxx
@@ -29,6 +29,8 @@
 #include <set>
 #include "vnl/vnl_math.h"
 
+#include "vcl_legacy_aliases.h"
+
 using namespace std;
 
 template <class TPixel, unsigned int VDim>
diff --git a/adapters/TestImage.cxx b/adapters/TestImage.cxx
index 96b34eb..e3cbb1e 100644
--- a/adapters/TestImage.cxx
+++ b/adapters/TestImage.cxx
@@ -27,6 +27,8 @@
 #include <itkAbsoluteValueDifferenceImageFilter.h>
 #include <itkMinimumMaximumImageFilter.h>
 
+#include "vcl_legacy_aliases.h"
+
 template <class TPixel, unsigned int VDim>
 void
 TestImage<TPixel, VDim>
diff --git a/utilities/AffineTransformTool.cxx b/utilities/AffineTransformTool.cxx
index 35bac09..7a36493 100644
--- a/utilities/AffineTransformTool.cxx
+++ b/utilities/AffineTransformTool.cxx
@@ -38,6 +38,8 @@
 #include "ConvertException.h"
 #include <iostream>
 
+#include "vcl_legacy_aliases.h"
+
 #define RAS_TO_FSL 0
 #define FSL_TO_RAS 1