diff --git a/code/controllers/configuration/config_entry.dm b/code/controllers/configuration/config_entry.dm
index 5b20f27b3e..36faa61759 100644
--- a/code/controllers/configuration/config_entry.dm
+++ b/code/controllers/configuration/config_entry.dm
@@ -194,17 +194,18 @@
 				continue_check_value = new_value
 			if(VALUE_MODE_NUM_LIST)
 				// this is all copy+pasted from number list up there, but it's super basic so I don't see it being changed soon
-				new_value = list()
+				var/list/new_list
 				var/list/values = splittext(str_val," ")
 				for(var/I in values)
 					var/temp = text2num(I)
 					if(isnull(temp))
 						log_admin("invalid number list entry in [key_name]: [I]")
 						return FALSE
-					new_value += temp
-				if(!new_value.len)
+					new_list += temp
+				if(!(new_list.len)) // 
 					log_admin("empty number list for [key_name]")
 					return FALSE
+				new_value = new_list
 		if(continue_check_value && continue_check_key && ValidateListEntry(new_key, new_value))
 			config_entry_value[new_key] = new_value
 			return TRUE
diff --git a/code/controllers/configuration/entries/game_options.dm b/code/controllers/configuration/entries/game_options.dm
index 98dcb45401..3438dfb7a9 100644
--- a/code/controllers/configuration/entries/game_options.dm
+++ b/code/controllers/configuration/entries/game_options.dm
@@ -384,3 +384,7 @@
 /datum/config_entry/keyed_list/dynamic_requirements
 	key_mode = KEY_MODE_TEXT
 	value_mode = VALUE_MODE_NUM_LIST
+
+/datum/config_entry/keyed_list/dynamic_high_population_requirement
+	key_mode = KEY_MODE_TEXT
+	value_mode = VALUE_MODE_NUM