diff --git a/src/calibre/gui2/store/stores/koobe_plugin.py b/src/calibre/gui2/store/stores/koobe_plugin.py
index 32d564e008..52bdd41e54 100644
--- a/src/calibre/gui2/store/stores/koobe_plugin.py
+++ b/src/calibre/gui2/store/stores/koobe_plugin.py
@@ -63,7 +63,7 @@ class KoobeStore(BasicStoreConfig, StorePlugin):
                     cover_url = ''.join(data.xpath('.//div[@class="cover"]/a/img/@src'))
                     price = ''.join(data.xpath('.//span[@class="current_price"]/text()'))
                     title = ''.join(data.xpath('.//h2[@class="title"]/a/text()'))
-                    author = ''.join(data.xpath('.//h3[@class="book_author"]/a/text()'))
+                    author = ', '.join(data.xpath('.//h3[@class="book_author"]/a/text()'))
                     formats = ', '.join(data.xpath('.//div[@class="formats"]/div/div/@title'))
 
                     counter -= 1