diff --git a/Modules/Filtering/CurvatureFlow/include/itkCurvatureFlowFunction.h b/Modules/Filtering/CurvatureFlow/include/itkCurvatureFlowFunction.h
index 3149870a131..542a4b30c4d 100644
--- a/Modules/Filtering/CurvatureFlow/include/itkCurvatureFlowFunction.h
+++ b/Modules/Filtering/CurvatureFlow/include/itkCurvatureFlowFunction.h
@@ -119,9 +119,10 @@ class ITK_EXPORT CurvatureFlowFunction:
 
 protected:
 
+  /** @cond HIDE_STRUCTURE */
+
   /** A global data type for this class of equations.  Used to store
    * values that are needed in calculating the time step. */
-  /// @cond
   struct GlobalDataStruct {
     GlobalDataStruct()
     {
diff --git a/Modules/Registration/Common/include/itkImageToImageMetric.h b/Modules/Registration/Common/include/itkImageToImageMetric.h
index 124738a0dd9..c46c807c772 100644
--- a/Modules/Registration/Common/include/itkImageToImageMetric.h
+++ b/Modules/Registration/Common/include/itkImageToImageMetric.h
@@ -334,7 +334,6 @@ class ITK_EXPORT ImageToImageMetric:
   /** \class FixedImageSamplePoint
    * A fixed image spatial sample consists of the fixed domain point
    * and the fixed image value at that point. */
-  /// @cond
   class FixedImageSamplePoint
   {
 public:
@@ -351,7 +350,6 @@ class ITK_EXPORT ImageToImageMetric:
     double              value;
     unsigned int        valueIndex;
   };
-  /// @endcond
 
   bool                     m_UseFixedImageIndexes;
   FixedImageIndexContainer m_FixedImageIndexes;