diff --git a/src/logic/threads_availchecker.py b/src/logic/threads_availchecker.py
index def135d..020c78f 100644
--- a/src/logic/threads_availchecker.py
+++ b/src/logic/threads_availchecker.py
@@ -44,7 +44,7 @@ class AvailChecker(QThread):
         count = 0
         for link in self.links:
             self.logger.log_info("Processing entry: " + str(link))
-            data = WebRequest(self.appnumber).get_ppn(link).get_data()
+            data = WebRequest().set_apparat(self.appnumber).get_ppn(link).get_data()
             transformer = BibTextTransformer("RDS")
             rds = transformer.get_data(data).return_data("rds_availability")