diff --git a/src/services/wallpapers.ts b/src/services/wallpapers.ts
index 0e0e1de3..4c7c49b0 100644
--- a/src/services/wallpapers.ts
+++ b/src/services/wallpapers.ts
@@ -40,7 +40,8 @@ export default class Wallpapers extends GObject.Object {
     async #thumbnail(path: string) {
         const dir = path.slice(1, path.lastIndexOf("/")).replaceAll("/", "-");
         const thumbPath = `${this.#thumbnailDir}/${dir}-${basename(path)}.jpg`;
-        await execAsync(`magick -define jpeg:size=1000x500 ${path} -thumbnail 500x250 -unsharp 0x.5 ${thumbPath}`);
+        if (!GLib.file_test(thumbPath, GLib.FileTest.EXISTS))
+            await execAsync(`magick -define jpeg:size=1000x500 ${path} -thumbnail 500x250 -unsharp 0x.5 ${thumbPath}`);
         return thumbPath;
     }