diff --git a/scripts/mediawiki_session.py b/scripts/mediawiki_session.py
index badba1976a1..ec081557192 100644
--- a/scripts/mediawiki_session.py
+++ b/scripts/mediawiki_session.py
@@ -105,10 +105,15 @@ def make_action(
             print(f"data: {data}")
             print(f"HTTP Status: {response.status_code}")
             print(f'Raw response: "{response}"')
-        parsed_response: dict[str, Any] = response.json()
-        if "error" in parsed_response.keys():
-            raise MediaWikiSessionError(parsed_response["error"]["info"])
-        return parsed_response[action]
+        try:
+            parsed_response: dict[str, Any] = response.json()
+            if "error" in parsed_response.keys():
+                raise MediaWikiSessionError(parsed_response["error"]["info"])
+            return parsed_response[action]
+        except requests.JSONDecodeError:
+            raise MediaWikiSessionError(
+                f"{response.status_code} ({response.reason}): {response.text}"
+            )
 
     def cooldown(self):
         time.sleep(SLEEP_DURATION)