diff --git a/math/quat.cpp b/math/quat.cpp
index e0f2b879f47..5e82dd18840 100644
--- a/math/quat.cpp
+++ b/math/quat.cpp
@@ -192,7 +192,7 @@ Quaternion Quaternion::fromEuler(const Angle &first, const Angle &second, const
 	return Quaternion(rot);
 }
 
-void Quaternion::getEuler(Angle *first, Angle *second, Angle *third, EulerOrder order) {
+void Quaternion::getEuler(Angle *first, Angle *second, Angle *third, EulerOrder order) const {
 	// Create a matrix from the Quaternion
 	Matrix4 rot = toMatrix();
 
diff --git a/math/quat.h b/math/quat.h
index f4da3cf9763..3706bc41ab5 100644
--- a/math/quat.h
+++ b/math/quat.h
@@ -130,7 +130,7 @@ public:
 	 * @param order		The Euler Order, specified in Rotation3D
 	 * @return		The new Quaternion
 	 */
-	void getEuler(Angle *first, Angle *second, Angle *third, EulerOrder order);
+	void getEuler(Angle *first, Angle *second, Angle *third, EulerOrder order) const;
 
 	/**
 	 * Create a Quaternion from a rotation around the X Axis