diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index e2fbde90..19b958da 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -1146,7 +1146,9 @@ void Creature::Initialize()
                      room->xtimer.ModifyTime
                          (nature_recover_hp_idle_timer,
                           SERVER_FRAME_RATE * mt::Param::s().nature_recover_hp_idletime);
-                     room->xtimer.Delete(nature_recover_hp_timer);
+                     if (!nature_recover_hp_timer.expired()) {
+                         room->xtimer.Delete(nature_recover_hp_timer);
+                     }
                  }
              },
              &xtimer_attacher);