diff --git a/.eslintrc.js b/.eslintrc.js
index 4247f91..f18f1d2 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -16,13 +16,18 @@ module.exports = {
 			"error",
 			"unix"
 		],
-		"quotes": [
-			"error",
-			"double"
-		],
 		"semi": [
 			"error",
 			"always"
 		]
+	},
+	"globals": {
+		"File": "readonly",
+		"FileInfo": "readonly",
+		"MapObject": "readonly",
+		"TextFile": "readonly",
+		"TileLayer": "readonly",
+		"TileMap": "readonly",
+		"tiled": "readonly"
 	}
 };
diff --git a/find-layer-by-id.js b/find-layer-by-id.js
index a2f224e..cb4baaf 100644
--- a/find-layer-by-id.js
+++ b/find-layer-by-id.js
@@ -8,8 +8,6 @@
  * you know its ID.
  */
 
-/* global tiled */
-
 function findLayerById(thing, id) {
 	for (let i = thing.layerCount - 1; i >= 0; i--) {
 		const layer = thing.layerAt(i);
diff --git a/find-object-by-id.js b/find-object-by-id.js
index 07d9725..deba955 100644
--- a/find-object-by-id.js
+++ b/find-object-by-id.js
@@ -11,8 +11,6 @@
  * function to work properly for isometric maps.
  */
 
-/* global tiled */
-
 function findObjectById(thing, id) {
 	for (let i = thing.layerCount - 1; i >= 0; i--) {
 		const layer = thing.layerAt(i);
diff --git a/follow-warp.js b/follow-warp.js
index 965d3d2..de618e5 100644
--- a/follow-warp.js
+++ b/follow-warp.js
@@ -12,8 +12,6 @@
  * with some adjustments it probably could!
  */
 
-/* global tiled */
-
 /**
  * @param thing {TileMap | GroupLayer}
  * @param name {string}
diff --git a/rectangle-chain.js b/rectangle-chain.js
index 20d331b..8ed96ba 100644
--- a/rectangle-chain.js
+++ b/rectangle-chain.js
@@ -7,8 +7,6 @@
  * the map.
  */
 
-/* global tiled, MapObject */
-
 tiled.registerTool("RectangleChain", {
 	name: "Draw Rectangle Chain",
 	icon: "rectangle-chain.svg",
diff --git a/remove-unused-tilesets.js b/remove-unused-tilesets.js
index 31247a6..16111b2 100644
--- a/remove-unused-tilesets.js
+++ b/remove-unused-tilesets.js
@@ -9,8 +9,6 @@
  * automatically on save.
  */
 
-/* global tiled */
-
 /**
  * @param {TileMap} map
  */
diff --git a/shortcuts.mjs b/shortcuts.mjs
index 2f90a39..afa8038 100644
--- a/shortcuts.mjs
+++ b/shortcuts.mjs
@@ -18,8 +18,6 @@
  * the Preferences dialog.
  */
 
-/* global tiled */
-
 /**
  * @param {Tileset} tileset
  */
diff --git a/tile-rectangle.js b/tile-rectangle.js
index c08e92f..c3a823b 100644
--- a/tile-rectangle.js
+++ b/tile-rectangle.js
@@ -10,8 +10,6 @@
  * brush is repeated in all directions.
  */
 
-/* global tiled, TileLayer, TileMap */
-
 tiled.registerTool("PaintTileRectangle", {
 	name: "Paint Tile Rectangle",
 	icon: "tile-rectangle.svg",
diff --git a/videogame-format.js b/videogame-format.js
index 53e4432..e3354b9 100644
--- a/videogame-format.js
+++ b/videogame-format.js
@@ -8,8 +8,6 @@
  * method from the videogame library (https://github.com/diogoeichert/videogame)
  */
 
-/* global tiled, FileInfo, TextFile */
-
 tiled.registerMapFormat("videogame", {
 	name: "videogame map format",
 	extension: "json",