diff --git a/LICENSE.third b/LICENSE.third
index 3796eaa..69610ac 100644
--- a/LICENSE.third
+++ b/LICENSE.third
@@ -34,8 +34,7 @@ kbtree.h:
 aho_corasick_template*.h:
 
     Copyright 2017 Laurent Farhi
-    Licensed under the GPL-3.0.
+    Licensed under the LGPL-3.0.
     https://github.com/farhiongit/aho-corasick-1975
-    Note: The developer has been contacted for a license change to the LGPL.
 
 See the respective source and/or license files for details.
diff --git a/src/aho_corasick_template.h b/src/aho_corasick_template.h
index 82b9d88..29f5515 100644
--- a/src/aho_corasick_template.h
+++ b/src/aho_corasick_template.h
@@ -4,23 +4,18 @@
 * Contact: lfarhi@sfr.fr
 *
 *  This file 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.
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation, version 3 of the License.
 *
 *  This file 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.
+*  GNU Lesser General Public License for more details.
 *
-*  You should have received a copy of the GNU General Public License
+*  You should have received a copy of the GNU Lesser General Public License
 *  along with this file.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-/*
- * 2021-10-06: The developer has been contacted for a license change to the LGPL.
- */
-
 #ifndef __ACM_TEMPLATE__
 
 #  define __ACM_TEMPLATE__
@@ -340,7 +335,7 @@ struct _ac_machine_##T                               \
 __attribute__ ((unused)) ACMachine_##T *ACM_create_##T (EQ_##T##_TYPE eq,        \
                                       COPY_##T##_TYPE copier,  \
                                       DESTROY_##T##_TYPE dtor);  \
-struct __useless_struct_to_allow_trailing_semicolon__
+struct __useless_struct_to_allow_trailing_semicolon__##T##__
 // END DECLARE_ACM
 
 // BEGIN MACROS
diff --git a/src/aho_corasick_template_impl.h b/src/aho_corasick_template_impl.h
index a6c5a45..11c8227 100644
--- a/src/aho_corasick_template_impl.h
+++ b/src/aho_corasick_template_impl.h
@@ -3,23 +3,18 @@
 * Contact: lfarhi@sfr.fr
 *
 *  This file 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.
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation, version 3 of the License.
 *
 *  This file 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.
+*  GNU Lesser General Public License for more details.
 *
-*  You should have received a copy of the GNU General Public License
+*  You should have received a copy of the GNU Lesser General Public License
 *  along with this file.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-/*
- * 2021-10-06: The developer has been contacted for a license change to the LGPL.
- */
-
 /*
  * This file is modified from the original to suppress ISO C and c99 warnings 
  * issued by both gcc and clang, such as those for _Generic selection and %n$ 
@@ -676,7 +671,7 @@ machine_init_##ACM_SYMBOL (ACMachine_##ACM_SYMBOL *machine,            \
   machine->destroy = dtor ? dtor : __DTOR_##ACM_SYMBOL;                \
   machine->eq = eq ? eq : __EQ_##ACM_SYMBOL;                           \
 }                                                                      \
-struct __useless_struct_to_allow_trailing_semicolon__
+struct __useless_struct_to_allow_trailing_semicolon__##T##__
 // END DEFINE_ACM
 
 #endif