diff --git a/src/calibre/gui2/store/mobileread/mobileread_plugin.py b/src/calibre/gui2/store/mobileread/mobileread_plugin.py
index 54242ce0b2..271e34a619 100644
--- a/src/calibre/gui2/store/mobileread/mobileread_plugin.py
+++ b/src/calibre/gui2/store/mobileread/mobileread_plugin.py
@@ -37,10 +37,10 @@ class MobileReadStore(BasicStoreConfig, StorePlugin):
                 d.set_tags(self.config.get('tags', ''))
                 d.exec_()
             else:
-                if self.update_cache(parent, 30):
-                    d = MobeReadStoreDialog(self, parent)
-                    d.setWindowTitle(self.name)
-                    d.exec_()
+                self.update_cache(parent, 30)
+                d = MobeReadStoreDialog(self, parent)
+                d.setWindowTitle(self.name)
+                d.exec_()
 
     def search(self, query, max_results=10, timeout=60):
         books = self.get_book_list()
diff --git a/src/calibre/gui2/store/search/search.py b/src/calibre/gui2/store/search/search.py
index 7ff38c3f31..5654df8ffc 100644
--- a/src/calibre/gui2/store/search/search.py
+++ b/src/calibre/gui2/store/search/search.py
@@ -247,5 +247,6 @@ class SearchDialog(QDialog, Ui_Dialog):
     def dialog_closed(self, result):
         self.results_view.model().closing()
         self.search_pool.abort()
+        self.cache_pool.abort()
         self.save_state()