diff --git a/engines/wikijs.py b/engines/wikijs.py
index 1674b95..c7d9487 100644
--- a/engines/wikijs.py
+++ b/engines/wikijs.py
@@ -20,7 +20,7 @@ search_token = ''
 
 cookies = {}
 headers = {
-    Authorization: f'Bearer {search_token}'
+    "Authorization": f'Bearer {search_token}'
 }
 '''Some engines might offer different result based on cookies or headers.
 Possible use-case: To set safesearch cookie or header to moderate.'''