diff --git a/src/main/java/alfio/manager/EuVatChecker.java b/src/main/java/alfio/manager/EuVatChecker.java
index 903a95b7a9..f7142b9282 100644
--- a/src/main/java/alfio/manager/EuVatChecker.java
+++ b/src/main/java/alfio/manager/EuVatChecker.java
@@ -1,3 +1,19 @@
+/**
+ * This file is part of alf.io.
+ *
+ * alf.io 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.
+ *
+ * alf.io 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 alf.io.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package alfio.manager;
 
 import alfio.manager.system.ConfigurationManager;
diff --git a/src/main/java/alfio/model/VatDetail.java b/src/main/java/alfio/model/VatDetail.java
index 67a4b24edf..3fcfcd7dab 100644
--- a/src/main/java/alfio/model/VatDetail.java
+++ b/src/main/java/alfio/model/VatDetail.java
@@ -1,3 +1,19 @@
+/**
+ * This file is part of alf.io.
+ *
+ * alf.io 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.
+ *
+ * alf.io 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 alf.io.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package alfio.model;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
diff --git a/src/test/java/alfio/manager/EuVatCheckerTest.java b/src/test/java/alfio/manager/EuVatCheckerTest.java
index f225f3903b..605ee1f0ea 100644
--- a/src/test/java/alfio/manager/EuVatCheckerTest.java
+++ b/src/test/java/alfio/manager/EuVatCheckerTest.java
@@ -1,3 +1,19 @@
+/**
+ * This file is part of alf.io.
+ *
+ * alf.io 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.
+ *
+ * alf.io 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 alf.io.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package alfio.manager;
 
 import alfio.manager.system.ConfigurationManager;