diff --git a/src/kernel_hydro.h b/src/kernel_hydro.h
index 8a7db6e12adb8fd1ccc15e0aee2c253b11dd7fec..aec24e757a1d06d19cd5433fa8ed558a9b594af4 100644
--- a/src/kernel_hydro.h
+++ b/src/kernel_hydro.h
@@ -761,6 +761,8 @@ __attribute__((always_inline)) INLINE static void kernel_eval_dWdx_vec(
  *
  * @param u The ratio of the distance to the smoothing length $u = x/h$.
  * @param dw_dx (return) The norm of the gradient of $|\\nabla W(x,h)|$.
+ * @param u_2 The ratio of the distance to the smoothing length $u = x/h$ for second particle.
+ * @param dw_dx_2 (return) The norm of the gradient of $|\\nabla W(x,h)|$ for second particle.
  */
 __attribute__((always_inline)) INLINE static void kernel_eval_dWdx_force_2_vec(
     vector *u, vector *dw_dx, vector *u_2, vector *dw_dx_2) {
diff --git a/src/runner_doiact_vec.c b/src/runner_doiact_vec.c
index 6042c5e33edd4ab5d7af96d4e51eed0b6152394a..1a2d1235109b862a9e6c9e0d6dafece97e0cb8ec 100644
--- a/src/runner_doiact_vec.c
+++ b/src/runner_doiact_vec.c
@@ -121,10 +121,6 @@ __attribute__((always_inline)) INLINE static void calcRemInteractions(
  * @param v_dx #vector of the x separation between two particles.
  * @param v_dy #vector of the y separation between two particles.
  * @param v_dz #vector of the z separation between two particles.
- * @param v_mj #vector of the mass of particle pj.
- * @param v_vjx #vector of x velocity of pj.
- * @param v_vjy #vector of y velocity of pj.
- * @param v_vjz #vector of z velocity of pj.
  * @param cell_cache #cache of all particles in the cell.
  * @param int_cache (return) secondary #cache of interactions between two
  * particles.
diff --git a/tests/testActivePair.c b/tests/testActivePair.c
index 0f8ecdea875557d972ff37dd9bc9a51d81911050..04cb177e45d21819f43f30911c98a3b89f07ede3 100644
--- a/tests/testActivePair.c
+++ b/tests/testActivePair.c
@@ -43,6 +43,7 @@
  * @param pert The perturbation to apply to the particles in the cell in units
  * of the inter-particle separation.
  * @param h_pert The perturbation to apply to the smoothing length.
+ * @param fraction_active The fraction of particles that should be active in the cell.
  */
 struct cell *make_cell(size_t n, double *offset, double size, double h,
                        double density, long long *partId, double pert,