diff --git a/tests/test125cells.c b/tests/test125cells.c
index e7f031436eb5d23708dbf55a02ae952ce22c5025..87325b4e9a2e254a2549b93b1031bf8af4538295 100644
--- a/tests/test125cells.c
+++ b/tests/test125cells.c
@@ -740,6 +740,11 @@ int main(int argc, char *argv[]) {
               outputFileNameExtension);
       dump_particle_fields(outputFileName, main_cell, solution, 0);
     }
+
+    for (int i = 0; i < 125; ++i) {
+      for (int n = 0; n < cells[i]->count; ++n)
+        hydro_init_part(&cells[i]->parts[n], &space.hs);
+    }
   }
 
   /* Output timing */