diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeColorByHeightFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeColorByHeightFilter.h
index 1cc1e96d94bb061adfd6fa9006776c70a18c3d1c..09a6254222a56b0d99c8a76fc3015cd43d5ecc9a 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeColorByHeightFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeColorByHeightFilter.h
@@ -25,7 +25,7 @@ public:
     VtkCompositeColorByHeightFilter(vtkAlgorithm* inputAlgorithm);
     virtual ~VtkCompositeColorByHeightFilter() {}
 
-    virtual void init();
+    virtual void init() override;
 
     virtual void SetUserProperty(QString name, QVariant value) override;
 
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeColormapToImageFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeColormapToImageFilter.h
index 93c53a513d50b4dbf9e7cda5e910088a3edecc58..b04404e4cbe063dfe3d29b9b8db25232875853f8 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeColormapToImageFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeColormapToImageFilter.h
@@ -23,7 +23,7 @@ public:
     VtkCompositeColormapToImageFilter(vtkAlgorithm* inputAlgorithm);
     virtual ~VtkCompositeColormapToImageFilter();
 
-    virtual void init();
+    virtual void init() override;
 
     virtual void SetUserProperty(QString name, QVariant value) override;
 
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeContourFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeContourFilter.h
index e57e8a5c07d759b2577c11293e5c571b2de0be8e..6dada55d4cdea76aca3e8a7caa7f58fffbe36053 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeContourFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeContourFilter.h
@@ -25,7 +25,7 @@ public:
     VtkCompositeContourFilter(vtkAlgorithm* inputAlgorithm);
     virtual ~VtkCompositeContourFilter();
 
-    virtual void init();
+    virtual void init() override;
 
     virtual void SetUserProperty(QString name, QVariant value) override;
 
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeGeoObjectFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeGeoObjectFilter.h
index f155d12258bb2e6151b7835036fb6a3fb4dafcc7..10545a299b3cc5df58427173d45d6d23e717f7af 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeGeoObjectFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeGeoObjectFilter.h
@@ -26,7 +26,7 @@ public:
     VtkCompositeGeoObjectFilter(vtkAlgorithm* inputAlgorithm);
     virtual ~VtkCompositeGeoObjectFilter();
 
-    virtual void init();
+    virtual void init() override;
 
     /// @brief Sets user properties.
     void SetUserProperty(QString name, QVariant value) override
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeImageToCylindersFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeImageToCylindersFilter.h
index 2bb1f4458b282e07d6e1790ce0cfb0fdfdbc442a..4deebfbd3c5830a07ff7d6af47f42e940c75340c 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeImageToCylindersFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeImageToCylindersFilter.h
@@ -27,7 +27,7 @@ public:
     VtkCompositeImageToCylindersFilter(vtkAlgorithm* inputAlgorithm);
     virtual ~VtkCompositeImageToCylindersFilter();
 
-    virtual void init();
+    virtual void init() override;
 
     virtual void SetUserProperty(QString name, QVariant value) override;
 
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeLineToTubeFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeLineToTubeFilter.h
index 3315631aeffe7ee3034bb0922a5ef4285782457c..6d4dda3ab49b40e9c7ad09e48f623790c5b62c17 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeLineToTubeFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeLineToTubeFilter.h
@@ -23,7 +23,7 @@ public:
     VtkCompositeLineToTubeFilter(vtkAlgorithm* inputAlgorithm);
     virtual ~VtkCompositeLineToTubeFilter();
 
-    virtual void init();
+    virtual void init() override;
 
     virtual void SetUserProperty(QString name, QVariant value) override;
 
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositePointToGlyphFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositePointToGlyphFilter.h
index c4151fe06c209c8ad3438cbfe130f4bca640969c..003f20d97984bcbb64c96f89f389f859c067237f 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositePointToGlyphFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositePointToGlyphFilter.h
@@ -25,7 +25,7 @@ public:
     VtkCompositePointToGlyphFilter(vtkAlgorithm* inputAlgorithm);
     virtual ~VtkCompositePointToGlyphFilter();
 
-    virtual void init();
+    virtual void init() override;
 
     virtual void SetUserProperty(QString name, QVariant value) override;
 
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeTextureOnSurfaceFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeTextureOnSurfaceFilter.h
index 9ddba6dd5075efa45ab44f65e3e1ad72864806b4..779ff87fcce3032f1d3c4b06d2cd730f26512ff9 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeTextureOnSurfaceFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeTextureOnSurfaceFilter.h
@@ -25,7 +25,7 @@ public:
     VtkCompositeTextureOnSurfaceFilter(vtkAlgorithm* inputAlgorithm);
     virtual ~VtkCompositeTextureOnSurfaceFilter();
 
-    virtual void init();
+    virtual void init() override;
 
     virtual void SetUserProperty(QString name, QVariant value) override;
 
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeThresholdFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeThresholdFilter.h
index e4afa308cafbbad39843f4ed6d5efaebc9d70774..346fd2c3c0c9463d2a6d424d80b7880f9efa4e59 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeThresholdFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeThresholdFilter.h
@@ -25,7 +25,7 @@ public:
     VtkCompositeThresholdFilter(vtkAlgorithm* inputAlgorithm);
     virtual ~VtkCompositeThresholdFilter();
 
-    virtual void init();
+    virtual void init() override;
 
     virtual void SetUserProperty(QString name, QVariant value) override;