diff --git a/Code/OysterPhysics3D/RigidBody.cpp b/Code/OysterPhysics3D/RigidBody.cpp
index 3ae48511..6fef6311 100644
--- a/Code/OysterPhysics3D/RigidBody.cpp
+++ b/Code/OysterPhysics3D/RigidBody.cpp
@@ -58,7 +58,7 @@ void RigidBody::Update_LeapFrog( Float updateFrameLength )
 	Float4x4 wMomentOfInertiaTensor = TransformMatrix( rotationMatrix, this->momentOfInertiaTensor ); // RI
 
 	// dO = dt * Formula::AngularVelocity( (RI)^-1, avg_H ) = dt * (RI)^-1 * avg_H
-	this->axis += Formula::AngularVelocity( wMomentOfInertiaTensor.GetInverse(), AverageWithDelta(this->momentum_Angular, this->impulse_Angular) );
+	this->axis += Radian( Formula::AngularVelocity(wMomentOfInertiaTensor.GetInverse(), AverageWithDelta(this->momentum_Angular, this->impulse_Angular)) );
 	this->rotation = Rotation( this->axis );
 
 	// update momentums and clear impulse_Linear and impulse_Angular