diff --git a/mappings/net/minecraft/entity/effect/StatusEffect.mapping b/mappings/net/minecraft/entity/effect/StatusEffect.mapping
index a43f1df074..bb58a62a77 100644
--- a/mappings/net/minecraft/entity/effect/StatusEffect.mapping
+++ b/mappings/net/minecraft/entity/effect/StatusEffect.mapping
@@ -9,11 +9,17 @@ CLASS net/minecraft/class_1291 net/minecraft/entity/effect/StatusEffect
 	METHOD method_5554 getRawId (Lnet/minecraft/class_1291;)I
 		ARG 0 type
 	METHOD method_5555 onApplied (Lnet/minecraft/class_1309;Lnet/minecraft/class_1325;I)V
+		ARG 1 entity
+		ARG 2 attributes
+		ARG 3 amplifier
 	METHOD method_5556 getColor ()I
 	METHOD method_5559 loadTranslationKey ()Ljava/lang/String;
 	METHOD method_5560 getName ()Lnet/minecraft/class_2561;
 	METHOD method_5561 isInstant ()Z
 	METHOD method_5562 onRemoved (Lnet/minecraft/class_1309;Lnet/minecraft/class_1325;I)V
+		ARG 1 entity
+		ARG 2 attributes
+		ARG 3 amplifier
 	METHOD method_5564 applyInstantEffect (Lnet/minecraft/class_1297;Lnet/minecraft/class_1297;Lnet/minecraft/class_1309;ID)V
 		ARG 1 source
 		ARG 2 attacker
@@ -30,3 +36,10 @@ CLASS net/minecraft/class_1291 net/minecraft/entity/effect/StatusEffect
 		ARG 0 rawId
 	METHOD method_5572 applyUpdateEffect (Lnet/minecraft/class_1309;I)V
 		ARG 1 entity
+	METHOD method_5563 adjustModifierAmount (ILnet/minecraft/class_1322;)D
+		ARG 1 amplifier
+		ARG 2 modifier
+	METHOD method_5573 isBeneficial ()Z
+	METHOD <init> (Lnet/minecraft/class_4081;I)V
+		ARG 1 type
+		ARG 2 color