diff --git a/src/game/GameObject.cpp b/src/game/GameObject.cpp
index 3d35fc448..f31a3b0c4 100644
--- a/src/game/GameObject.cpp
+++ b/src/game/GameObject.cpp
@@ -1673,6 +1673,7 @@ void GameObject::SetRotationQuat(float qx, float qy, float qz, float qw)
     if (qz == 0 && qw == 0)
         quat = Quat::fromAxisAngleRotation(G3D::Vector3::unitZ(), GetOrientation());
 
+    quat.unitize();
     m_rotation = QuaternionCompressed(quat).m_raw;
     SetFloatValue(GAMEOBJECT_PARENTROTATION+0, quat.x);
     SetFloatValue(GAMEOBJECT_PARENTROTATION+1, quat.y);
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index e2581d642..f2ef7bbf5 100644
--- a/src/shared/revision_nr.h
+++ b/src/shared/revision_nr.h
@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "11530"
+ #define REVISION_NR "11531"
 #endif // __REVISION_NR_H__