diff --git a/code/_helpers/text.dm b/code/_helpers/text.dm
index 5aa80299c7..549060b0af 100644
--- a/code/_helpers/text.dm
+++ b/code/_helpers/text.dm
@@ -314,3 +314,19 @@ proc/TextPreview(var/string,var/len=40)
 	if(C && (C.prefs.toggles & CHAT_NOICONS))
 		return tagdesc
 	return "<IMG src='\ref[text_tag_icons.icon]' class='text_tag' iconstate='[tagname]'" + (tagdesc ? " alt='[tagdesc]'" : "") + ">"
+
+/proc/contains_az09(var/input)
+	for(var/i=1, i<=length(input), i++)
+		var/ascii_char = text2ascii(input,i)
+		switch(ascii_char)
+			// A  .. Z
+			if(65 to 90)			//Uppercase Letters
+				return 1
+			// a  .. z
+			if(97 to 122)			//Lowercase Letters
+				return 1
+
+			// 0  .. 9
+			if(48 to 57)			//Numbers
+				return 1
+	return 0
diff --git a/code/controllers/configuration.dm b/code/controllers/configuration.dm
index f7fa88dc01..15945ab25a 100644
--- a/code/controllers/configuration.dm
+++ b/code/controllers/configuration.dm
@@ -691,7 +691,9 @@ var/list/gamemode_cache = list()
 					config.aggressive_changelog = 1
 
 				if("default_language_prefixes")
-					language_prefixes = text2list(value, " ")
+					var/list/values = text2list(value, " ")
+					if(values.len > 0)
+						language_prefixes = values
 
 				else
 					log_misc("Unknown setting in configuration: '[name]'")
diff --git a/code/modules/client/preferences.dm b/code/modules/client/preferences.dm
index 12bb317867..33dfc109e1 100644
--- a/code/modules/client/preferences.dm
+++ b/code/modules/client/preferences.dm
@@ -76,7 +76,7 @@ datum/preferences
 	var/species = "Human"               //Species datum to use.
 	var/species_preview                 //Used for the species selection window.
 	var/list/alternate_languages = list() //Secondary language(s)
-	var/list/alternate_language_prefixes = list() //Alternative language prefixes
+	var/list/language_prefixes = list() //Kanguage prefix keys
 	var/list/gear						//Custom/fluff item loadout.
 
 		//Some faction information.
@@ -402,8 +402,11 @@ datum/preferences
 			dat += "- <a href='byond://?src=\ref[user];preference=language;add=1'>add</a> ([S.num_alternate_languages - alternate_languages.len] remaining)<br>"
 	else
 		dat += "- [species] cannot choose secondary languages.<br>"
-	dat += "<br><br>"
 
+	dat += "<b>Language Keys</b><br>"
+	dat += " [english_list(language_prefixes, and_text = " ", comma_text = " ")] <a href='byond://?src=\ref[user];preference=language_prefix'>Change</a><br>"
+
+	dat += "<br><br>"
 	var/list/undies = gender == MALE ? underwear_m : underwear_f
 
 	dat += "Underwear: <a href ='?_src_=prefs;preference=underwear;task=input'><b>[get_key_by_value(undies,underwear)]</b></a><br>"
@@ -1176,6 +1179,24 @@ datum/preferences
 					if(new_lang)
 						alternate_languages |= new_lang
 
+	else if(href_list["preference"] == "language_prefix")
+		var/char
+		var/keys[0]
+		do
+			char = input("Enter a single special character.\nYou may re-select the same characters.\nBe aware that the following characters are already in use by radio: ; : .", "Enter Character - [3 - keys.len] remaining") as null|text
+			if(char)
+				if(length(char) > 1)
+					alert("Only single characters allowed.", "Error", "Ok")
+				else if(char in list(";", ":", "."))
+					alert("Radio character. Rejected.", "Error", "Ok")
+				else if(contains_az09(char))
+					alert("Non-special character. Rejected.", "Error", "Ok")
+				else
+					keys.Add(char)
+		while(char && keys.len < 3)
+
+		if(keys.len == 3)
+			language_prefixes = keys
 	switch(href_list["task"])
 		if("change")
 			if(href_list["preference"] == "species")
diff --git a/code/modules/client/preferences_savefile.dm b/code/modules/client/preferences_savefile.dm
index 98c012962d..cc721a62ee 100644
--- a/code/modules/client/preferences_savefile.dm
+++ b/code/modules/client/preferences_savefile.dm
@@ -110,11 +110,11 @@
 	S["spawnpoint"]			>> spawnpoint
 
 	S["language"]			>> alternate_languages
-	S["language_prefixes"]	>> alternate_language_prefixes
+	S["language_prefixes"]	>> language_prefixes
 	if(isnull(alternate_languages))
 		alternate_languages = list()
-	if(isnull(alternate_language_prefixes))
-		alternate_language_prefixes = config.language_prefixes.Copy()
+	if(isnull(language_prefixes) || !language_prefixes.len)
+		language_prefixes = config.language_prefixes.Copy()
 	if(!islist(alternate_languages))
 		if(client)
 			// Warn them that we (probably) just broke their languages
@@ -290,7 +290,7 @@
 	S["age"]				<< age
 	S["species"]			<< species
 	S["language"]			<< alternate_languages
-	S["language_prefixes"]	<< alternate_language_prefixes
+	S["language_prefixes"]	<< language_prefixes
 	S["hair_red"]			<< r_hair
 	S["hair_green"]			<< g_hair
 	S["hair_blue"]			<< b_hair
diff --git a/code/modules/mob/language/language.dm b/code/modules/mob/language/language.dm
index 81c7a7b735..5898546f41 100644
--- a/code/modules/mob/language/language.dm
+++ b/code/modules/mob/language/language.dm
@@ -158,14 +158,14 @@
 	return (universal_speak || (speaking && speaking.flags & INNATE) || speaking in src.languages)
 
 /mob/proc/get_language_prefix()
-	if(client && client.prefs.alternate_language_prefixes && client.prefs.alternate_language_prefixes.len)
-		return client.prefs.alternate_language_prefixes[1]
+	if(client && client.prefs.language_prefixes && client.prefs.language_prefixes.len)
+		return client.prefs.language_prefixes[1]
 
 	return config.language_prefixes[1]
 
 /mob/proc/is_language_prefix(var/prefix)
-	if(client && client.prefs.alternate_language_prefixes && client.prefs.alternate_language_prefixes.len)
-		return prefix in client.prefs.alternate_language_prefixes
+	if(client && client.prefs.language_prefixes && client.prefs.language_prefixes.len)
+		return prefix in client.prefs.language_prefixes
 
 	return prefix in config.language_prefixes