diff --git a/mappings/net/minecraft/fluid/FluidState.mapping b/mappings/net/minecraft/fluid/FluidState.mapping
index 5df87fdda3..7eb4bcf56d 100644
--- a/mappings/net/minecraft/fluid/FluidState.mapping
+++ b/mappings/net/minecraft/fluid/FluidState.mapping
@@ -25,7 +25,7 @@ CLASS net/minecraft/class_3610 net/minecraft/fluid/FluidState
 		ARG 3 fluid
 		ARG 4 direction
 	METHOD method_15766 getParticle ()Lnet/minecraft/class_2394;
-	METHOD method_15767 matches (Lnet/minecraft/class_3494;)Z
+	METHOD method_15767 isIn (Lnet/minecraft/class_3494;)Z
 		ARG 1 tag
 	METHOD method_15768 randomDisplayTick (Lnet/minecraft/class_1937;Lnet/minecraft/class_2338;Ljava/util/Random;)V
 		ARG 1 world