diff --git a/libavfilter/af_amerge.c b/libavfilter/af_amerge.c
index 55269f6046..370578e375 100644
--- a/libavfilter/af_amerge.c
+++ b/libavfilter/af_amerge.c
@@ -11,7 +11,7 @@
  * FFmpeg 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 Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
diff --git a/libavfilter/af_astreamsync.c b/libavfilter/af_astreamsync.c
index 587d9a7662..3c5b77e0ab 100644
--- a/libavfilter/af_astreamsync.c
+++ b/libavfilter/af_astreamsync.c
@@ -11,7 +11,7 @@
  * FFmpeg 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 Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
diff --git a/libavfilter/af_pan.c b/libavfilter/af_pan.c
index 13bb5c3a65..753522b76e 100644
--- a/libavfilter/af_pan.c
+++ b/libavfilter/af_pan.c
@@ -13,7 +13,7 @@
  * FFmpeg 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 Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software