diff --git a/forge/build.gradle b/forge/build.gradle
index b44c609f6..247b70796 100644
--- a/forge/build.gradle
+++ b/forge/build.gradle
@@ -27,6 +27,8 @@ minecraft {
 //    mappings channel: "official", version: minecraft_version // Vanilla mappings
     mappings channel: "parchment", version: "${parchment_version}-${minecraft_version}" // Parchment mappings
 
+    accessTransformer = project(":forge").file("src/main/resources/accesstransformer.cfg") // FIXME: Find a libary to use fabric's accessWidener instead of forge's own accesstransformer format
+
     runs {
         client {
             workingDirectory project.file("run")
diff --git a/forge/src/main/resources/accesstransformer.cfg b/forge/src/main/resources/accesstransformer.cfg
new file mode 100644
index 000000000..e9eb6a824
--- /dev/null
+++ b/forge/src/main/resources/accesstransformer.cfg
@@ -0,0 +1,28 @@
+public net.minecraft.world.level.lighting.LevelLightEngine f_75802_
+public net.minecraft.world.level.lighting.LevelLightEngine f_75803_
+public net.minecraft.client.renderer.LevelRenderer$RenderChunkInfo
+public net.minecraft.client.renderer.LevelRenderer$RenderChunkInfo f_109839_
+public net.minecraft.world.level.biome.Biome f_47438_
+public net.minecraft.world.level.biome.Biome f_47442_
+public net.minecraft.client.renderer.texture.TextureAtlasSprite$AnimatedTexture
+public net.minecraft.client.renderer.texture.TextureAtlasSprite$AnimatedTexture m_174764_(I)I
+public net.minecraft.client.renderer.texture.TextureAtlasSprite$AnimatedTexture m_174759_(I)I
+public net.minecraft.world.level.levelgen.Heightmap m_64245_(III)V
+public net.minecraft.world.level.storage.DimensionDataStorage f_78146_
+public net.minecraft.client.renderer.LevelRenderer f_194307_
+public-f com.mojang.math.Matrix4f
+public net.minecraft.client.renderer.texture.TextureAtlasSprite f_118342_
+public net.minecraft.client.renderer.texture.TextureAtlasSprite f_174723_
+public net.minecraft.client.renderer.texture.TextureAtlasSprite f_174725_
+public net.minecraft.client.renderer.texture.TextureAtlasSprite f_174724_
+public net.minecraft.client.renderer.LevelRenderer$RenderChunkStorage
+public net.minecraft.client.renderer.GameRenderer m_109141_(Lnet/minecraft/client/Camera;FZ)D
+public-f net.minecraft.util.ThreadingDetector f_199409_
+public net.minecraft.world.level.levelgen.NoiseBasedChunkGenerator m_188662_(Lnet/minecraft/world/level/levelgen/blending/Blender;Lnet/minecraft/world/level/StructureFeatureManager;Lnet/minecraft/world/level/chunk/ChunkAccess;II)Lnet/minecraft/world/level/chunk/ChunkAccess;
+public com.mojang.blaze3d.vertex.VertexBuffer f_166859_
+public com.mojang.blaze3d.vertex.VertexBuffer f_166863_
+public net.minecraft.server.level.ChunkMap f_140135_
+public net.minecraft.server.level.ChunkMap m_140427_(Lnet/minecraft/world/level/ChunkPos;)Lnet/minecraft/nbt/CompoundTag;
+public net.minecraft.client.renderer.LightTexture f_109870_
+public net.minecraft.client.renderer.LightTexture f_109871_
+public net.minecraft.world.level.lighting.LayerLightEngine m_75660_(JLnet/minecraft/world/level/chunk/DataLayer;Z)V