diff --git a/src/gravity/Default/gravity.h b/src/gravity/Default/gravity.h
index cace6e86bd26477a95b6f8bc3ce2da3aec911c2f..24dcfd7032c6c14dd7ce5c48f20186979988a079 100644
--- a/src/gravity/Default/gravity.h
+++ b/src/gravity/Default/gravity.h
@@ -106,7 +106,6 @@ gravity_compute_timestep_self(const struct gpart* const gp,
 
   const float epsilon = gravity_get_softening(gp, grav_props);
 
-  /* Note that 0.66666667 = 2. (from Gadget) / 3. (Plummer softening) */
   const float dt = sqrtf(2. * kernel_gravity_softening_plummer_equivalent_inv *
                          cosmo->a * grav_props->eta * epsilon * ac_inv);