diff --git a/docs/configuration.rst b/docs/configuration.rst
index a7deeb9d..2da8741c 100644
--- a/docs/configuration.rst
+++ b/docs/configuration.rst
@@ -6652,7 +6652,10 @@ extractor.wikimedia.format
 Type
     ``string``
 Default
-    ``"original"``
+    ``fandom`` | ``wikigg``
+        ``"original"``
+    otherwise
+        ``""``
 Description
     Sets the `format` query parameter value
     added to all download URLs.
diff --git a/docs/gallery-dl.conf b/docs/gallery-dl.conf
index 4ab30b48..bbf04186 100644
--- a/docs/gallery-dl.conf
+++ b/docs/gallery-dl.conf
@@ -1129,11 +1129,19 @@
         "wikimedia":
         {
             "sleep-request": "1.0-2.0",
-            "format": "original",
+            "format": "",
             "image-revisions": 1,
             "limit": 50,
             "subcategories": true
         },
+        "fandom":
+        {
+            "format": "original"
+        },
+        "wikigg":
+        {
+            "format": "original"
+        },
 
         "booru":
         {
diff --git a/gallery_dl/extractor/wikimedia.py b/gallery_dl/extractor/wikimedia.py
index 39cc4c90..a00185f9 100644
--- a/gallery_dl/extractor/wikimedia.py
+++ b/gallery_dl/extractor/wikimedia.py
@@ -24,12 +24,14 @@ class WikimediaExtractor(BaseExtractor):
     def __init__(self, match):
         self._init_category(match)
 
+        self.format = False
         if self.category == "wikimedia":
             labels = self.root.split(".")
             self.lang = labels[-3][-2:]
             self.category = labels[-2]
         elif self.category in ("fandom", "wikigg"):
             self.lang = "en"
+            self.format = "original"
             self.basesubcategory = self.category
             self.category = (
                 f"{self.category}-"
@@ -56,7 +58,7 @@ class WikimediaExtractor(BaseExtractor):
         # https://www.mediawiki.org/wiki/API:Revisions
         # https://www.mediawiki.org/wiki/API:Imageinfo
         self.image_revisions = self.config("image-revisions", 1)
-        self.format = self.config("format", "original")
+        self.format = self.config("format", self.format)
         self.per_page = self.config("limit", 50)
         self.subcategories = False