diff --git a/library/PolyVoxCore/include/PolyVoxCore/Picking.h b/library/PolyVoxCore/include/PolyVoxCore/Picking.h
index 96322ac2..ee757ddb 100644
--- a/library/PolyVoxCore/include/PolyVoxCore/Picking.h
+++ b/library/PolyVoxCore/include/PolyVoxCore/Picking.h
@@ -41,7 +41,7 @@ namespace PolyVox
 	
 	/// Pick the first solid voxel along a vector
 	template<typename VolumeType>
-	PickResult pickVoxel(VolumeType* volData, const Vector3DFloat& v3dStart, const Vector3DFloat& v3dDirectionAndLength, const typename VolumeType::VoxelType& emptyVoxelExample = typename VolumeType::VoxelType());
+	PickResult pickVoxel(VolumeType* volData, const Vector3DFloat& v3dStart, const Vector3DFloat& v3dDirectionAndLength, const typename VolumeType::VoxelType& emptyVoxelExample);
 }
 
 #include "PolyVoxCore/Picking.inl"
diff --git a/tests/TestPicking.cpp b/tests/TestPicking.cpp
index 62fa8531..6271d004 100644
--- a/tests/TestPicking.cpp
+++ b/tests/TestPicking.cpp
@@ -52,14 +52,15 @@ void TestPicking::testExecute()
 			}
 		}
 	}
-	
-	PickResult resultHit = pickVoxel(&volData, Vector3DFloat(0, uVolumeSideLength / 2, uVolumeSideLength / 2), Vector3DFloat(uVolumeSideLength, 0, 0));
+
+	const int8_t emptyVoxelExample = 0; //A voxel value of zero will represent empty space.	
+	PickResult resultHit = pickVoxel(&volData, Vector3DFloat(0, uVolumeSideLength / 2, uVolumeSideLength / 2), Vector3DFloat(uVolumeSideLength, 0, 0), emptyVoxelExample);
 	
 	QCOMPARE(resultHit.didHit, true);
 	QCOMPARE(resultHit.hitVoxel, Vector3DInt32((uVolumeSideLength / 2) + 1, uVolumeSideLength / 2, uVolumeSideLength / 2));
 	QCOMPARE(resultHit.previousVoxel, Vector3DInt32((uVolumeSideLength / 2), uVolumeSideLength / 2, uVolumeSideLength / 2));
 	
-	PickResult resultMiss = pickVoxel(&volData, Vector3DFloat(0, uVolumeSideLength / 2, uVolumeSideLength / 2), Vector3DFloat(uVolumeSideLength / 2, uVolumeSideLength, uVolumeSideLength));
+	PickResult resultMiss = pickVoxel(&volData, Vector3DFloat(0, uVolumeSideLength / 2, uVolumeSideLength / 2), Vector3DFloat(uVolumeSideLength / 2, uVolumeSideLength, uVolumeSideLength), emptyVoxelExample);
 	
 	QCOMPARE(resultMiss.didHit, false);
 }