diff --git a/src/hydro/Minimal/hydro.h b/src/hydro/Minimal/hydro.h
index 8bbaacfbea6e5da938d38006379d47342d93cf28..812f8ad72de55ad7990ee6ef88223a401780bc4b 100644
--- a/src/hydro/Minimal/hydro.h
+++ b/src/hydro/Minimal/hydro.h
@@ -370,7 +370,6 @@ __attribute__((always_inline)) INLINE static void hydro_part_has_no_neighbours(
   p->density.wcount = kernel_root * h_inv_dim;
   p->density.rho_dh = 0.f;
   p->density.wcount_dh = 0.f;
-  p->force.v_sig = 1.f;
 }
 
 /**
diff --git a/src/hydro/Minimal/hydro_debug.h b/src/hydro/Minimal/hydro_debug.h
index eb0c99dd4c238ae80a87378d4357a9d40ad1fa3a..73ffc26b8acf687a5445591ddccd72ea8e8fa8ae 100644
--- a/src/hydro/Minimal/hydro_debug.h
+++ b/src/hydro/Minimal/hydro_debug.h
@@ -42,13 +42,11 @@ __attribute__((always_inline)) INLINE static void hydro_debug_particle(
       "m=%.3g, u=%.3g, du/dt=%.3g, P=%.3g, c_s=%.3g, \n "
       "v_sig=%.3g, h=%.3g, dh/dt=%.3g, wcount=%.3g, rho=%.3g, \n "
       "dh_drho=%.3g, time_bin=%d \n",
-      p->x[0], p->x[1], p->x[2], p->v[0], p->v[1], p->v[2],
-      xp->v_full[0], xp->v_full[1], xp->v_full[2],
-      p->a_hydro[0], p->a_hydro[1], p->a_hydro[2],
+      p->x[0], p->x[1], p->x[2], p->v[0], p->v[1], p->v[2], xp->v_full[0],
+      xp->v_full[1], xp->v_full[2], p->a_hydro[0], p->a_hydro[1], p->a_hydro[2],
       p->mass, p->u, p->u_dt, hydro_get_comoving_pressure(p),
       p->force.soundspeed, p->force.v_sig, p->h, p->force.h_dt,
-      p->density.wcount, p->rho, p->density.rho_dh,
-      p->time_bin);
+      p->density.wcount, p->rho, p->density.rho_dh, p->time_bin);
 }
 
 #endif /* SWIFT_MINIMAL_HYDRO_DEBUG_H */
diff --git a/src/hydro/MinimalMultiMat/hydro.h b/src/hydro/MinimalMultiMat/hydro.h
index 405b4b5b0a071080c235e0be30d9ad45c996d8ae..cfad6b2b2b389da9f423540cb30f1df4cebc5416 100644
--- a/src/hydro/MinimalMultiMat/hydro.h
+++ b/src/hydro/MinimalMultiMat/hydro.h
@@ -371,7 +371,6 @@ __attribute__((always_inline)) INLINE static void hydro_part_has_no_neighbours(
   p->density.wcount = kernel_root * h_inv_dim;
   p->density.rho_dh = 0.f;
   p->density.wcount_dh = 0.f;
-  p->force.v_sig = 1.f;
 }
 
 /**
diff --git a/src/hydro/MinimalMultiMat/hydro_debug.h b/src/hydro/MinimalMultiMat/hydro_debug.h
index 01d4d24b113b5a51ebe6fb9996db633aae1eca09..17b624ad0f660152be4ba685905a3c855e1761f8 100644
--- a/src/hydro/MinimalMultiMat/hydro_debug.h
+++ b/src/hydro/MinimalMultiMat/hydro_debug.h
@@ -44,13 +44,11 @@ __attribute__((always_inline)) INLINE static void hydro_debug_particle(
       "m=%.3g, u=%.3g, du/dt=%.3g, P=%.3g, c_s=%.3g, \n "
       "v_sig=%.3g, h=%.3g, dh/dt=%.3g, wcount=%.3g, rho=%.3g, \n "
       "dh_drho=%.3g, time_bin=%d, mat_id=%d \n",
-      p->x[0], p->x[1], p->x[2], p->v[0], p->v[1], p->v[2],
-      xp->v_full[0], xp->v_full[1], xp->v_full[2],
-      p->a_hydro[0], p->a_hydro[1], p->a_hydro[2],
+      p->x[0], p->x[1], p->x[2], p->v[0], p->v[1], p->v[2], xp->v_full[0],
+      xp->v_full[1], xp->v_full[2], p->a_hydro[0], p->a_hydro[1], p->a_hydro[2],
       p->mass, p->u, p->u_dt, hydro_get_comoving_pressure(p),
       p->force.soundspeed, p->force.v_sig, p->h, p->force.h_dt,
-      p->density.wcount, p->rho, p->density.rho_dh,
-      p->time_bin, p->mat_id);
+      p->density.wcount, p->rho, p->density.rho_dh, p->time_bin, p->mat_id);
 }
 
 #endif /* SWIFT_MINIMAL_MULTI_MAT_HYDRO_DEBUG_H */