diff --git a/src/content_mob.cpp b/src/content_mob.cpp
index d89055f..3c7c355 100644
--- a/src/content_mob.cpp
+++ b/src/content_mob.cpp
@@ -394,7 +394,7 @@ void content_mob_init()
 	f->spawn_min_height = -5;
 	f->spawn_max_height = 50;
 	f->spawn_naturally = false;
-	f->lifetime = one_month;
+	f->lifetime = one_week;
 	f->setCollisionBox(aabb3f(-BS/4.,-BS/6.,-BS/4., BS/4.,BS/6.,BS/4.));
 	lists::add("creative",CONTENT_TOOLITEM_MOB_SPAWNER,1,i);
 
@@ -485,7 +485,7 @@ void content_mob_init()
 	f->spawn_min_height = -5;
 	f->spawn_max_height = 40;
 	f->spawn_group = 3;
-	f->lifetime = one_month;
+	f->lifetime = one_week;
 	f->setCollisionBox(aabb3f(-0.6*BS, 0., -0.6*BS, 0.6*BS, 1.25*BS, 0.6*BS));
 	lists::add("creative",CONTENT_TOOLITEM_MOB_SPAWNER,1,i);
 
@@ -566,7 +566,7 @@ void content_mob_init()
 	f->spawn_group = 3;
 	f->spawn_water = true;
 	f->hp = 5;
-	f->lifetime = one_month;
+	f->lifetime = one_week;
 	f->setCollisionBox(aabb3f(-0.25*BS, 0.25*BS, -0.25*BS, 0.25*BS, 0.75*BS, 0.25*BS));
 	lists::add("creative",CONTENT_TOOLITEM_MOB_SPAWNER,1,i);
 
@@ -681,7 +681,7 @@ void content_mob_init()
 	f->spawn_min_height = 2;
 	f->spawn_max_height = 50;
 	f->spawn_group = 4;
-	f->lifetime = one_month;
+	f->lifetime = one_week;
 	f->setCollisionBox(aabb3f(-0.4*BS, 0., -0.4*BS, 0.4*BS, 1.*BS, 0.4*BS));
 	lists::add("creative",CONTENT_TOOLITEM_MOB_SPAWNER,1,i);