diff --git a/app/src/main/java/com/emanuelef/remote_capture/ConnectionsListener.java b/app/src/main/java/com/emanuelef/remote_capture/ConnectionsListener.java
index 5fbb0d97..b52d5afc 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/ConnectionsListener.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/ConnectionsListener.java
@@ -1,3 +1,22 @@
+/*
+ * This file is part of PCAPdroid.
+ *
+ * PCAPdroid is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * PCAPdroid is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with PCAPdroid.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2020 - Emanuele Faranda
+ */
+
 package com.emanuelef.remote_capture;
 
 public interface ConnectionsListener {
diff --git a/app/src/main/java/com/emanuelef/remote_capture/ConnectionsRegister.java b/app/src/main/java/com/emanuelef/remote_capture/ConnectionsRegister.java
index 832eea7f..75aaf05d 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/ConnectionsRegister.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/ConnectionsRegister.java
@@ -1,3 +1,22 @@
+/*
+ * This file is part of PCAPdroid.
+ *
+ * PCAPdroid is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * PCAPdroid is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with PCAPdroid.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2020 - Emanuele Faranda
+ */
+
 package com.emanuelef.remote_capture;
 
 import android.util.Log;
diff --git a/app/src/main/java/com/emanuelef/remote_capture/EmptyRecyclerView.java b/app/src/main/java/com/emanuelef/remote_capture/EmptyRecyclerView.java
index 3f4445ab..2218243c 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/EmptyRecyclerView.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/EmptyRecyclerView.java
@@ -1,3 +1,22 @@
+/*
+ * This file is part of PCAPdroid.
+ *
+ * PCAPdroid is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * PCAPdroid is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with PCAPdroid.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2020 - Emanuele Faranda
+ */
+
 package com.emanuelef.remote_capture;
 
 import android.content.Context;
diff --git a/app/src/main/java/com/emanuelef/remote_capture/StatsActivity.java b/app/src/main/java/com/emanuelef/remote_capture/StatsActivity.java
index 99f3bbf4..8c6b81c9 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/StatsActivity.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/StatsActivity.java
@@ -1,3 +1,22 @@
+/*
+ * This file is part of PCAPdroid.
+ *
+ * PCAPdroid is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * PCAPdroid is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with PCAPdroid.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2020 - Emanuele Faranda
+ */
+
 package com.emanuelef.remote_capture;
 
 import androidx.appcompat.app.ActionBar;
diff --git a/app/src/main/java/com/emanuelef/remote_capture/VPNStats.java b/app/src/main/java/com/emanuelef/remote_capture/VPNStats.java
index 9d33ba38..8d0e99ba 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/VPNStats.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/VPNStats.java
@@ -1,3 +1,22 @@
+/*
+ * This file is part of PCAPdroid.
+ *
+ * PCAPdroid is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * PCAPdroid is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with PCAPdroid.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2020 - Emanuele Faranda
+ */
+
 package com.emanuelef.remote_capture;
 
 import java.io.Serializable;