diff --git a/MathLib/Vector3.h b/MathLib/Vector3.h
index 1e90b44333a1405cc86e7a081106d47a88daaaa6..270200b5ea54fa61fbb7ccc652a6c4fa4341ed60 100644
--- a/MathLib/Vector3.h
+++ b/MathLib/Vector3.h
@@ -118,7 +118,7 @@ public:
 	/// Returns a normalized version of this vector
 	TemplateVector3<double> normalizeVector() const
 	{
-		TemplateVector3<double> norm_vec (_x[0], _x[1], _x[2]);
+		TemplateVector3<double> norm_vec (this->_x[0], this->_x[1], this->_x[2]);
 		norm_vec.normalize();
 		return norm_vec;
 	}