diff --git a/engines/wikijs.py b/engines/wikijs.py
index d4c8c80..fc80c4c 100644
--- a/engines/wikijs.py
+++ b/engines/wikijs.py
@@ -21,7 +21,7 @@ search_token = ''
 cookies = {}
 headers = {
     "Authorization": f'Bearer {search_token}',
-    "Content-Type": 'application/json'
+    "Content-Type": 'application/x-www-form-urlencoded'
 }
 '''Some engines might offer different result based on cookies or headers.
 Possible use-case: To set safesearch cookie or header to moderate.'''