diff --git a/src/runner_doiact_vec.c b/src/runner_doiact_vec.c
index fd585e331dfcb6ec9626e3343da885d69ee6d7a1..79df48a2378fff3e784fe9652397be4903d295d2 100644
--- a/src/runner_doiact_vec.c
+++ b/src/runner_doiact_vec.c
@@ -702,6 +702,9 @@ __attribute__((always_inline)) INLINE void runner_doself2_force_vec(
         cell_cache->h[i] = 1.f;
         cell_cache->rho[i] = 1.f;
         cell_cache->grad_h[i] = 1.f;
+        cell_cache->pOrho2[i] = 1.f;
+        cell_cache->balsara[i] = 1.f;
+        cell_cache->soundspeed[i] = 1.f;
       }
     }