diff --git a/src/hydro/Default/hydro_iact.h b/src/hydro/Default/hydro_iact.h
index e4062f6a64821b06658d77c57254c91d97eb5f5e..2748bdca4ee933c6aa1a4e2777e38cd45cc1ddbc 100644
--- a/src/hydro/Default/hydro_iact.h
+++ b/src/hydro/Default/hydro_iact.h
@@ -750,7 +750,6 @@ __attribute__((always_inline)) INLINE static void runner_iact_nonsym_force(
 
   /* Update the signal velocity. */
   pi->force.v_sig = fmaxf(pi->force.v_sig, v_sig);
-  pj->force.v_sig = fmaxf(pj->force.v_sig, v_sig);
 }
 
 /**
@@ -946,7 +945,6 @@ __attribute__((always_inline)) INLINE static void runner_iact_nonsym_vec_force(
     pi[k]->force.u_dt += piu_dt.f[k];
     pi[k]->h_dt -= pih_dt.f[k];
     pi[k]->force.v_sig = vi_sig.f[k];
-    pj[k]->force.v_sig = vj_sig.f[k];
     for (j = 0; j < 3; j++) pi[k]->a_hydro[j] -= pia[j].f[k];
   }