diff --git a/interface/src/Menu.cpp b/interface/src/Menu.cpp
index d10ad66741..e27704fc30 100644
--- a/interface/src/Menu.cpp
+++ b/interface/src/Menu.cpp
@@ -439,16 +439,16 @@ Menu::Menu() :
                                   SLOT(trueColorize()));
 
     addCheckableActionToQMenuAndActionHash(renderDebugMenu, 
-								  MenuOption::CullSharedFaces, 
-								  Qt::CTRL | Qt::SHIFT | Qt::Key_C, 
-								  false,
+                                  MenuOption::CullSharedFaces, 
+                                  Qt::CTRL | Qt::SHIFT | Qt::Key_C, 
+                                  false,
                                   appInstance->getVoxels(),
                                   SLOT(cullSharedFaces()));
 
     addCheckableActionToQMenuAndActionHash(renderDebugMenu, 
-								  MenuOption::ShowCulledSharedFaces, 
-								  Qt::CTRL | Qt::SHIFT | Qt::Key_X, 
-								  false,
+                                  MenuOption::ShowCulledSharedFaces, 
+                                  Qt::CTRL | Qt::SHIFT | Qt::Key_X, 
+                                  false,
                                   appInstance->getVoxels(),
                                   SLOT(showCulledSharedFaces()));
 
diff --git a/libraries/octree/src/OctreeElement.h b/libraries/octree/src/OctreeElement.h
index 9e5c62c0c3..1785307696 100644
--- a/libraries/octree/src/OctreeElement.h
+++ b/libraries/octree/src/OctreeElement.h
@@ -199,18 +199,18 @@ public:
         CHILD_UNKNOWN = -1
     };
 
-	struct HalfSpace {
-		enum {
+    struct HalfSpace {
+        enum {
             None    = 0x00,
-			Bottom	= 0x01,
-			Top		= 0x02,
-			Right	= 0x04,
-			Left	= 0x08,
-			Near	= 0x10,
-			Far		= 0x20,
-			All		= 0x3f,
-		};
-	};
+            Bottom  = 0x01,
+            Top     = 0x02,
+            Right   = 0x04,
+            Left    = 0x08,
+            Near    = 0x10,
+            Far     = 0x20,
+            All     = 0x3f,
+        };
+    };
 
 
     OctreeElement* getOrCreateChildElementAt(float x, float y, float z, float s);
diff --git a/libraries/voxels/src/VoxelTreeElement.cpp b/libraries/voxels/src/VoxelTreeElement.cpp
index 0a577417ec..4470c47b5e 100644
--- a/libraries/voxels/src/VoxelTreeElement.cpp
+++ b/libraries/voxels/src/VoxelTreeElement.cpp
@@ -14,10 +14,10 @@
 #include "VoxelTree.h"
 
 VoxelTreeElement::VoxelTreeElement(unsigned char* octalCode) : 
-	OctreeElement(),
-	_primitiveIndex(0),
-	_exteriorOcclusions(OctreeElement::HalfSpace::All),
-	_interiorOcclusions(OctreeElement::HalfSpace::None)
+    OctreeElement(),
+    _primitiveIndex(0),
+    _exteriorOcclusions(OctreeElement::HalfSpace::All),
+    _interiorOcclusions(OctreeElement::HalfSpace::None)
 {
     init(octalCode);
 };
diff --git a/libraries/voxels/src/VoxelTreeElement.h b/libraries/voxels/src/VoxelTreeElement.h
index a3c112fcde..15ee5c7c76 100644
--- a/libraries/voxels/src/VoxelTreeElement.h
+++ b/libraries/voxels/src/VoxelTreeElement.h
@@ -71,10 +71,10 @@ public:
     void setDensity(float density) { _density = density; }
     float getDensity() const { return _density; }
 
-	void setInteriorOcclusions(unsigned char interiorExclusions);
-	void setExteriorOcclusions(unsigned char exteriorOcclusions);
-	unsigned char getExteriorOcclusions() const;
-	unsigned char getInteriorOcclusions() const;
+    void setInteriorOcclusions(unsigned char interiorExclusions);
+    void setExteriorOcclusions(unsigned char exteriorOcclusions);
+    unsigned char getExteriorOcclusions() const;
+    unsigned char getInteriorOcclusions() const;
 
     // type safe versions of OctreeElement methods
     VoxelTreeElement* getChildAtIndex(int childIndex) { return (VoxelTreeElement*)OctreeElement::getChildAtIndex(childIndex); }
@@ -98,31 +98,31 @@ protected:
     nodeColor _currentColor; /// Client only, false color of this voxel, 4 bytes
 
 private:
-	int _primitiveIndex;
-	unsigned char _exteriorOcclusions;	/// exterior shared partition boundaries that are completely occupied
-	unsigned char _interiorOcclusions;	/// interior shared partition boundaries with siblings
+    int _primitiveIndex;                        ///< Unique identifier given by PrimitiveRenderer
+    unsigned char _exteriorOcclusions;          ///< Exterior shared partition boundaries that are completely occupied
+    unsigned char _interiorOcclusions;          ///< Interior shared partition boundaries with siblings
 };
 
 inline void VoxelTreeElement::setExteriorOcclusions(unsigned char exteriorOcclusions) { 
-	if (_exteriorOcclusions != exteriorOcclusions) {
-		_exteriorOcclusions = exteriorOcclusions; 
-		setDirtyBit();
-	}
+    if (_exteriorOcclusions != exteriorOcclusions) {
+        _exteriorOcclusions = exteriorOcclusions; 
+        setDirtyBit();
+    }
 }
 
 inline void VoxelTreeElement::setInteriorOcclusions(unsigned char interiorOcclusions) { 
-	if (_interiorOcclusions != interiorOcclusions) {
-		_interiorOcclusions = interiorOcclusions; 
-		setDirtyBit();
-	}
+    if (_interiorOcclusions != interiorOcclusions) {
+        _interiorOcclusions = interiorOcclusions; 
+        setDirtyBit();
+    }
 }
 
 inline unsigned char VoxelTreeElement::getInteriorOcclusions() const { 
-	return _interiorOcclusions; 
+    return _interiorOcclusions; 
 }
 
 inline unsigned char VoxelTreeElement::getExteriorOcclusions() const { 
-	return _exteriorOcclusions; 
+    return _exteriorOcclusions; 
 }
 
 #endif /* defined(__hifi__VoxelTreeElement__) */