diff --git a/mappings/net/minecraft/client/gui/screen/AddServerScreen.mapping b/mappings/net/minecraft/client/gui/screen/AddServerScreen.mapping
index 3d99e7ad6b..92c51fcbb0 100644
--- a/mappings/net/minecraft/client/gui/screen/AddServerScreen.mapping
+++ b/mappings/net/minecraft/client/gui/screen/AddServerScreen.mapping
@@ -3,7 +3,7 @@ CLASS net/minecraft/class_422 net/minecraft/client/gui/screen/AddServerScreen
 	FIELD field_21791 parent Lnet/minecraft/class_437;
 	FIELD field_2469 server Lnet/minecraft/class_642;
 	FIELD field_2471 serverNameField Lnet/minecraft/class_342;
-	FIELD field_2472 buttonAdd Lnet/minecraft/class_4185;
+	FIELD field_2472 addButton Lnet/minecraft/class_4185;
 	FIELD field_2474 addressField Lnet/minecraft/class_342;
 	FIELD field_26541 ENTER_NAME_TEXT Lnet/minecraft/class_2561;
 	FIELD field_26542 ENTER_IP_TEXT Lnet/minecraft/class_2561;
@@ -12,3 +12,4 @@ CLASS net/minecraft/class_422 net/minecraft/client/gui/screen/AddServerScreen
 		ARG 2 callback
 		ARG 3 server
 	METHOD method_2172 addAndClose ()V
+	METHOD method_36223 updateAddButton ()V
diff --git a/mappings/net/minecraft/client/network/ServerAddress.mapping b/mappings/net/minecraft/client/network/ServerAddress.mapping
index 95a0cb07d0..10cbf3f634 100644
--- a/mappings/net/minecraft/client/network/ServerAddress.mapping
+++ b/mappings/net/minecraft/client/network/ServerAddress.mapping
@@ -1,4 +1,9 @@
 CLASS net/minecraft/class_639 net/minecraft/client/network/ServerAddress
+	FIELD field_33416 LOGGER Lorg/apache/logging/log4j/Logger;
+	FIELD field_33417 hostAndPort Lcom/google/common/net/HostAndPort;
+	FIELD field_33418 INVALID Lnet/minecraft/class_639;
+	METHOD <init> (Lcom/google/common/net/HostAndPort;)V
+		ARG 1 hostAndPort
 	METHOD method_2950 parse (Ljava/lang/String;)Lnet/minecraft/class_639;
 		ARG 0 address
 	METHOD method_2951 portOrDefault (Ljava/lang/String;I)I
@@ -6,4 +11,7 @@ CLASS net/minecraft/class_639 net/minecraft/client/network/ServerAddress
 		ARG 1 def
 	METHOD method_2952 getAddress ()Ljava/lang/String;
 	METHOD method_2953 resolveServer (Lcom/google/common/net/HostAndPort;)Lcom/google/common/net/HostAndPort;
+		ARG 0 hostAndPort
 	METHOD method_2954 getPort ()I
+	METHOD method_36224 isValid (Ljava/lang/String;)Z
+		ARG 0 address