diff --git a/src/calibre/gui2/dialogs/metadata_single.ui b/src/calibre/gui2/dialogs/metadata_single.ui
index 8a5fc4f99d..6e96c8d741 100644
--- a/src/calibre/gui2/dialogs/metadata_single.ui
+++ b/src/calibre/gui2/dialogs/metadata_single.ui
@@ -324,7 +324,7 @@
                     <string>Book </string>
                    </property>
                    <property name="minimum">
-                    <number>1</number>
+                    <number>0</number>
                    </property>
                    <property name="maximum">
                     <number>10000</number>