diff --git a/.eslintrc.json b/.eslintrc.json
index d0320792b1..9f1c32553e 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -546,7 +546,8 @@
         },
         {
             "files": [
-                "*.js"
+                "*.js",
+                "*.ts"
             ],
             "rules": {
                 "header/header": [
diff --git a/types/ext/request-builder.d.ts b/types/ext/request-builder.d.ts
index b231bcd712..41ab522718 100644
--- a/types/ext/request-builder.d.ts
+++ b/types/ext/request-builder.d.ts
@@ -1,18 +1,18 @@
 /*
-* Copyright (C) 2023  Yomitan Authors
-*
-* This program 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.
-*
-* This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
+ * Copyright (C) 2023  Yomitan Authors
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 
 export type ProgressCallback = (complete: boolean) => void;
diff --git a/types/ext/script-manager.d.ts b/types/ext/script-manager.d.ts
index 8933715285..c82fa9cb92 100644
--- a/types/ext/script-manager.d.ts
+++ b/types/ext/script-manager.d.ts
@@ -1,19 +1,19 @@
 /*
-* Copyright (C) 2023  Yomitan Authors
-*
-* This program 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.
-*
-* This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
+ * Copyright (C) 2023  Yomitan Authors
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 
 export type RunAt = 'document_start' | 'document_end' | 'document_idle';