diff --git a/src/endpoints/characters.js b/src/endpoints/characters.js
index 571eec8c0..929818ade 100644
--- a/src/endpoints/characters.js
+++ b/src/endpoints/characters.js
@@ -1098,7 +1098,7 @@ router.post('/export', jsonParser, async function (request, response) {
                 const fileContent = await fsPromises.readFile(filename);
                 const contentType = mime.lookup(filename) || 'image/png';
                 response.setHeader('Content-Type', contentType);
-                response.setHeader('Content-Disposition', `attachment; filename=${path.basename(filename)}`);
+                response.setHeader('Content-Disposition', `attachment; filename="${encodeURI(path.basename(filename))}"`);
                 return response.send(fileContent);
             }
             case 'json': {