diff --git a/src/main/java/com/hypherionmc/modfusioner/Constants.java b/src/main/java/com/hypherionmc/modfusioner/Constants.java
index 939b9c6..7b34f88 100644
--- a/src/main/java/com/hypherionmc/modfusioner/Constants.java
+++ b/src/main/java/com/hypherionmc/modfusioner/Constants.java
@@ -1,3 +1,12 @@
+/*
+ * This file is part of ModFusioner, licensed under the GNU Lesser General Public License v2.1.
+ *
+ * This project is based on, and contains code from https://github.com/PacifistMC/Forgix, licensed under the same license.
+ * See their license here: https://github.com/PacifistMC/Forgix/blob/main/LICENSE
+ *
+ * Copyright HypherionSA and Contributors
+ * Forgix Code Copyright by their contributors and Ran-Mewo
+ */
 package com.hypherionmc.modfusioner;
 
 import java.nio.file.attribute.PosixFilePermission;
diff --git a/src/main/java/com/hypherionmc/modfusioner/actions/JarMergeAction.java b/src/main/java/com/hypherionmc/modfusioner/actions/JarMergeAction.java
index 2844d2d..63506e5 100644
--- a/src/main/java/com/hypherionmc/modfusioner/actions/JarMergeAction.java
+++ b/src/main/java/com/hypherionmc/modfusioner/actions/JarMergeAction.java
@@ -1,3 +1,12 @@
+/*
+ * This file is part of ModFusioner, licensed under the GNU Lesser General Public License v2.1.
+ *
+ * This project is based on, and contains code from https://github.com/PacifistMC/Forgix, licensed under the same license.
+ * See their license here: https://github.com/PacifistMC/Forgix/blob/main/LICENSE
+ *
+ * Copyright HypherionSA and Contributors
+ * Forgix Code Copyright by their contributors and Ran-Mewo
+ */
 package com.hypherionmc.modfusioner.actions;
 
 import com.hypherionmc.modfusioner.Constants;
diff --git a/src/main/java/com/hypherionmc/modfusioner/plugin/FusionerExtension.java b/src/main/java/com/hypherionmc/modfusioner/plugin/FusionerExtension.java
index c66e967..2e9eb94 100644
--- a/src/main/java/com/hypherionmc/modfusioner/plugin/FusionerExtension.java
+++ b/src/main/java/com/hypherionmc/modfusioner/plugin/FusionerExtension.java
@@ -1,3 +1,12 @@
+/*
+ * This file is part of ModFusioner, licensed under the GNU Lesser General Public License v2.1.
+ *
+ * This project is based on, and contains code from https://github.com/PacifistMC/Forgix, licensed under the same license.
+ * See their license here: https://github.com/PacifistMC/Forgix/blob/main/LICENSE
+ *
+ * Copyright HypherionSA and Contributors
+ * Forgix Code Copyright by their contributors and Ran-Mewo
+ */
 package com.hypherionmc.modfusioner.plugin;
 
 import groovy.lang.Closure;
diff --git a/src/main/java/com/hypherionmc/modfusioner/plugin/ModFusionerPlugin.java b/src/main/java/com/hypherionmc/modfusioner/plugin/ModFusionerPlugin.java
index 10c078d..f842d29 100644
--- a/src/main/java/com/hypherionmc/modfusioner/plugin/ModFusionerPlugin.java
+++ b/src/main/java/com/hypherionmc/modfusioner/plugin/ModFusionerPlugin.java
@@ -1,3 +1,12 @@
+/*
+ * This file is part of ModFusioner, licensed under the GNU Lesser General Public License v2.1.
+ *
+ * This project is based on, and contains code from https://github.com/PacifistMC/Forgix, licensed under the same license.
+ * See their license here: https://github.com/PacifistMC/Forgix/blob/main/LICENSE
+ *
+ * Copyright HypherionSA and Contributors
+ * Forgix Code Copyright by their contributors and Ran-Mewo
+ */
 package com.hypherionmc.modfusioner.plugin;
 
 import com.hypherionmc.modfusioner.Constants;
diff --git a/src/main/java/com/hypherionmc/modfusioner/task/JarFuseTask.java b/src/main/java/com/hypherionmc/modfusioner/task/JarFuseTask.java
index 032161c..bddc6a0 100644
--- a/src/main/java/com/hypherionmc/modfusioner/task/JarFuseTask.java
+++ b/src/main/java/com/hypherionmc/modfusioner/task/JarFuseTask.java
@@ -1,3 +1,12 @@
+/*
+ * This file is part of ModFusioner, licensed under the GNU Lesser General Public License v2.1.
+ *
+ * This project is based on, and contains code from https://github.com/PacifistMC/Forgix, licensed under the same license.
+ * See their license here: https://github.com/PacifistMC/Forgix/blob/main/LICENSE
+ *
+ * Copyright HypherionSA and Contributors
+ * Forgix Code Copyright by their contributors and Ran-Mewo
+ */
 package com.hypherionmc.modfusioner.task;
 
 import com.hypherionmc.modfusioner.Constants;
diff --git a/src/main/java/com/hypherionmc/modfusioner/utils/FileChecks.java b/src/main/java/com/hypherionmc/modfusioner/utils/FileChecks.java
index 49ee1d4..cf92a41 100644
--- a/src/main/java/com/hypherionmc/modfusioner/utils/FileChecks.java
+++ b/src/main/java/com/hypherionmc/modfusioner/utils/FileChecks.java
@@ -1,3 +1,12 @@
+/*
+ * This file is part of ModFusioner, licensed under the GNU Lesser General Public License v2.1.
+ *
+ * This project is based on, and contains code from https://github.com/PacifistMC/Forgix, licensed under the same license.
+ * See their license here: https://github.com/PacifistMC/Forgix/blob/main/LICENSE
+ *
+ * Copyright HypherionSA and Contributors
+ * Forgix Code Copyright by their contributors and Ran-Mewo
+ */
 package com.hypherionmc.modfusioner.utils;
 
 import org.apache.tika.Tika;
diff --git a/src/main/java/com/hypherionmc/modfusioner/utils/FileTools.java b/src/main/java/com/hypherionmc/modfusioner/utils/FileTools.java
index 87ee967..e4a34b6 100644
--- a/src/main/java/com/hypherionmc/modfusioner/utils/FileTools.java
+++ b/src/main/java/com/hypherionmc/modfusioner/utils/FileTools.java
@@ -1,3 +1,12 @@
+/*
+ * This file is part of ModFusioner, licensed under the GNU Lesser General Public License v2.1.
+ *
+ * This project is based on, and contains code from https://github.com/PacifistMC/Forgix, licensed under the same license.
+ * See their license here: https://github.com/PacifistMC/Forgix/blob/main/LICENSE
+ *
+ * Copyright HypherionSA and Contributors
+ * Forgix Code Copyright by their contributors and Ran-Mewo
+ */
 package com.hypherionmc.modfusioner.utils;
 
 import org.apache.commons.io.FileUtils;