diff --git a/source/blender/modifiers/intern/MOD_simulation.cc b/source/blender/modifiers/intern/MOD_simulation.cc
index d009eef00e6..7b76cb56d5d 100644
--- a/source/blender/modifiers/intern/MOD_simulation.cc
+++ b/source/blender/modifiers/intern/MOD_simulation.cc
@@ -114,6 +114,10 @@ static PointCloud *modifyPointCloud(ModifierData *md,
       CustomData_get_layer_named(&state->attributes, CD_PROP_FLOAT, "Radius"));
   memcpy(pointcloud->co, positions, sizeof(float3) * state->tot_particles);
 
+  CustomData_add_layer_named(
+      &pointcloud->pdata, CD_PROP_FLOAT, CD_CALLOC, NULL, state->tot_particles, "Radius");
+  BKE_pointcloud_update_customdata_pointers(pointcloud);
+
   for (int i = 0; i < state->tot_particles; i++) {
     pointcloud->radius[i] = radii[i];
   }