diff --git a/src/Gui/Clipping.cpp b/src/Gui/Clipping.cpp
index 11f9c9708b..8d054eceb5 100644
--- a/src/Gui/Clipping.cpp
+++ b/src/Gui/Clipping.cpp
@@ -74,6 +74,7 @@ public:
         clipView->plane.setValue(SbPlane(SbVec3f(0,0,1),0));
         clipView->ref();
 
+        node = 0;
         sensor = new SoTimerSensor(moveCallback, this);
     }
     ~Private()
diff --git a/src/Mod/Image/Gui/GLImageBox.h b/src/Mod/Image/Gui/GLImageBox.h
index 32a50644a8..ecd32d83ca 100644
--- a/src/Mod/Image/Gui/GLImageBox.h
+++ b/src/Mod/Image/Gui/GLImageBox.h
@@ -19,8 +19,8 @@
 #ifndef GLIMAGEBOX_H
 #define GLIMAGEBOX_H
 
-#include <Mod/Image/App/ImageBase.h>
-#include <QGLWidget>
+#include <Mod/Image/App/ImageBase.h>
+#include <QGLWidget>
 
 namespace ImageGui
 {
@@ -75,7 +75,7 @@ public:
     unsigned int pixValToMapIndex(double PixVal);
 
 Q_SIGNALS:
-  void drawGraphics();
+    void drawGraphics();
 
 private:
 
diff --git a/src/Mod/Image/Gui/ImageView.h b/src/Mod/Image/Gui/ImageView.h
index aed86b7dae..58d2e8cc08 100644
--- a/src/Mod/Image/Gui/ImageView.h
+++ b/src/Mod/Image/Gui/ImageView.h
@@ -44,7 +44,7 @@ public:
     virtual ~ImageView();
 
     const char *getName(void) const {return "ImageView";}
-    void onUpdate(void){};
+    void onUpdate(void){}
 
     bool onMsg(const char* ,const char** ){ return true; }
     bool onHasMsg(const char* ) const { return false; }
diff --git a/src/Mod/Mesh/Gui/MeshSelection.cpp b/src/Mod/Mesh/Gui/MeshSelection.cpp
index 513d9e2e3e..0d85c0ee81 100644
--- a/src/Mod/Mesh/Gui/MeshSelection.cpp
+++ b/src/Mod/Mesh/Gui/MeshSelection.cpp
@@ -465,7 +465,7 @@ void MeshSelection::selectGLCallback(void * ud, SoEventCallback * n)
 
     std::list<ViewProviderMesh*> views = self->getViewProviders();
     for (std::list<ViewProviderMesh*>::iterator it = views.begin(); it != views.end(); ++it) {
-        ViewProviderMesh* vp = static_cast<ViewProviderMesh*>(*it);
+        ViewProviderMesh* vp = *it;
 
         std::vector<unsigned long> faces;
         const Mesh::MeshObject& mesh = static_cast<Mesh::Feature*>((*it)->getObject())->Mesh.getValue();
diff --git a/src/Mod/Mesh/Gui/SoFCIndexedFaceSet.h b/src/Mod/Mesh/Gui/SoFCIndexedFaceSet.h
index f4ab9ebb78..d6f9a7d752 100644
--- a/src/Mod/Mesh/Gui/SoFCIndexedFaceSet.h
+++ b/src/Mod/Mesh/Gui/SoFCIndexedFaceSet.h
@@ -55,7 +55,7 @@ public:
 
 protected:
     // Force using the reference count mechanism.
-    virtual ~SoFCIndexedFaceSet() {};
+    virtual ~SoFCIndexedFaceSet() {}
     virtual void GLRender(SoGLRenderAction *action);
     void drawCoords(const SoGLCoordinateElement * const vertexlist,
                     const int32_t *vertexindices,