diff --git a/patches/minecraft/net/minecraft/world/chunk/NibbleArray.java.patch b/patches/minecraft/net/minecraft/world/chunk/NibbleArray.java.patch
index af969fa895..de355c9e35 100644
--- a/patches/minecraft/net/minecraft/world/chunk/NibbleArray.java.patch
+++ b/patches/minecraft/net/minecraft/world/chunk/NibbleArray.java.patch
@@ -1,14 +1,5 @@
 --- a/net/minecraft/world/chunk/NibbleArray.java
 +++ b/net/minecraft/world/chunk/NibbleArray.java
-@@ -33,7 +_,7 @@
-       return p_177483_2_ << 8 | p_177483_3_ << 4 | p_177483_1_;
-    }
- 
--   private int func_177480_a(int p_177480_1_) {
-+   public int func_177480_a(int p_177480_1_) {
-       if (this.field_76585_a == null) {
-          return 0;
-       } else {
 @@ -42,7 +_,7 @@
        }
     }
diff --git a/src/main/resources/mappings/spigot2srg.srg b/src/main/resources/mappings/spigot2srg.srg
index a80e4494f8..828dd39c20 100644
--- a/src/main/resources/mappings/spigot2srg.srg
+++ b/src/main/resources/mappings/spigot2srg.srg
@@ -201,6 +201,7 @@ CL: net/minecraft/server/BiomeBase$Precipitation net/minecraft/world/biome/Biome
 CL: net/minecraft/server/BiomeBase$TemperatureModifier net/minecraft/world/biome/Biome$TemperatureModifier
 CL: net/minecraft/server/BiomeDecoratorGroups net/minecraft/world/gen/feature/Features
 CL: net/minecraft/server/BiomeFog net/minecraft/world/biome/BiomeAmbience
+CL: net/minecraft/server/BiomeFog$a net/minecraft/world/biome/BiomeAmbience$Builder
 CL: net/minecraft/server/BiomeFog$GrassColor net/minecraft/world/biome/BiomeAmbience$GrassColorModifier
 CL: net/minecraft/server/BiomeManager net/minecraft/world/biome/BiomeManager
 CL: net/minecraft/server/BiomeManager$Provider net/minecraft/world/biome/BiomeManager$IBiomeReader