diff --git a/build.gradle.kts b/build.gradle.kts
index 0192032..ffda24b 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,6 +3,7 @@ import com.modrinth.minotaur.ModrinthExtension
 import com.modrinth.minotaur.dependencies.DependencyType
 import masecla.modrinth4j.model.version.ProjectVersion.VersionType
 import net.fabricmc.loom.LoomGradleExtension
+import net.fabricmc.loom.api.LoomGradleExtensionAPI
 
 buildscript {
     dependencies {
@@ -26,7 +27,7 @@ plugins {
 
 group = "fr.username404"
 version = "0.3.5"
-val groupAndName = "${rootProject.group}.${rootProject.name.toLowerCase()}"
+val groupAndName = "${rootProject.group}.${rootProject.name.lowercase()}"
 
 val javaVer: String = "21"
 val sourceJavaVer: String = javaVer
@@ -50,6 +51,9 @@ subprojects {
     apply(plugin = "dev.architectury.loom")
     apply(plugin = "org.jetbrains.kotlin.plugin.serialization")
     extensions.configure<LoomGradleExtension>("loom") {
+        if (this@subprojects.project.name != "common") {
+            accessWidenerPath.set(project(":common").extensions.getByType<LoomGradleExtensionAPI>().accessWidenerPath)
+        }
         mappingsDep = layered {
             silentMojangMappingsLicense()
             officialMojangMappings().parchment("org.parchmentmc.data:parchment-1.21:2024.06.23")
@@ -114,7 +118,7 @@ subprojects {
             val dictionariesDir = "$rootDir/obfuscation"
             dependsOn(shadowJar)
             injars(shadowJar)
-            outjars("$buildDir/shrinkedJar/${shadowJar.outputs.files.singleFile.name}")
+            outjars("${rootProject.layout.buildDirectory}/shrinkedJar/${shadowJar.outputs.files.singleFile.name}")
             keep("class $group.snowygui.mixins.* { * ; }")
             keep("class $group.snowygui.fabric.FabricInit")
             keep("class $group.snowygui.fabric.ModMenuConf")
diff --git a/common/build.gradle.kts b/common/build.gradle.kts
index a37b0df..43f65fd 100644
--- a/common/build.gradle.kts
+++ b/common/build.gradle.kts
@@ -6,4 +6,8 @@ dependencies {
     }
 }
 
+loom {
+    accessWidenerPath = file("src/main/resources/${rootProject.name.lowercase()}.accessWidener")
+}
+
 tasks.getByName("shrinkJar").enabled = false
diff --git a/common/src/main/java/fr/username404/snowygui/mixins/OptionValueAccessor.java b/common/src/main/java/fr/username404/snowygui/mixins/OptionValueAccessor.java
deleted file mode 100644
index 5147bbc..0000000
--- a/common/src/main/java/fr/username404/snowygui/mixins/OptionValueAccessor.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package fr.username404.snowygui.mixins;
-
-import net.minecraft.client.OptionInstance;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.gen.Accessor;
-
-@Mixin(OptionInstance.class)
-public interface OptionValueAccessor {
-    @Accessor("value")
-    void setValue(Object value);
-}
diff --git a/common/src/main/kotlin/fr/username404/snowygui/gui/feature/GammaBoost.kt b/common/src/main/kotlin/fr/username404/snowygui/gui/feature/GammaBoost.kt
index adb07c9..7956a20 100644
--- a/common/src/main/kotlin/fr/username404/snowygui/gui/feature/GammaBoost.kt
+++ b/common/src/main/kotlin/fr/username404/snowygui/gui/feature/GammaBoost.kt
@@ -1,6 +1,5 @@
 package fr.username404.snowygui.gui.feature
 
-import fr.username404.snowygui.mixins.OptionValueAccessor
 import net.minecraft.client.Minecraft
 
 @ButtonInfo(Category.MISC)
@@ -10,11 +9,11 @@ object GammaBoost: ButtonImpl() {
     override fun execAction() {
         with(Minecraft.getInstance().options) {
             val gamma = gamma().get()
-            @Suppress("KotlinConstantConditions")
-            (gamma() as OptionValueAccessor).setValue(if (toggled) {
-                if (gamma < boost) oldGamma = gamma
-                boost
-            } else oldGamma)
+            gamma().value =
+                if (toggled) {
+                    if (gamma < boost) oldGamma = gamma
+                        boost
+                } else oldGamma
         }
     }
 }
\ No newline at end of file
diff --git a/common/src/main/resources/snowygui-common.mixins.json b/common/src/main/resources/snowygui-common.mixins.json
index ef1a5a9..315916e 100644
--- a/common/src/main/resources/snowygui-common.mixins.json
+++ b/common/src/main/resources/snowygui-common.mixins.json
@@ -2,9 +2,7 @@
   "required": true,
   "package": "fr.username404.snowygui.mixins",
   "compatibilityLevel": "JAVA_18",
-  "client": [
-    "OptionValueAccessor"
-  ],
+  "client": [],
   "injectors": {
     "defaultRequire": 1
   },
diff --git a/common/src/main/resources/snowygui.accessWidener b/common/src/main/resources/snowygui.accessWidener
new file mode 100644
index 0000000..e93b5f5
--- /dev/null
+++ b/common/src/main/resources/snowygui.accessWidener
@@ -0,0 +1,3 @@
+accessWidener v2 named
+accessible field net/minecraft/client/OptionInstance value Ljava/lang/Object;
+mutable field net/minecraft/client/OptionInstance value Ljava/lang/Object;
\ No newline at end of file
diff --git a/common/src/main/resources/snowygui.common.json b/common/src/main/resources/snowygui.common.json
new file mode 100644
index 0000000..09dc545
--- /dev/null
+++ b/common/src/main/resources/snowygui.common.json
@@ -0,0 +1,3 @@
+{
+  "accessWidener": "snowygui.accessWidener"
+}
\ No newline at end of file
diff --git a/fabric/src/main/resources/fabric.mod.json b/fabric/src/main/resources/fabric.mod.json
index b5747c8..db8f041 100644
--- a/fabric/src/main/resources/fabric.mod.json
+++ b/fabric/src/main/resources/fabric.mod.json
@@ -32,6 +32,7 @@
     "snowygui-common.mixins.json",
     "snowygui-fabric.mixins.json"
   ],
+  "accessWidener": "snowygui.accessWidener",
   "depends": {
     "fabricloader": ">=${fabric_loader}",
     "fabric-language-kotlin": ">=${fabric_kotlin}",