diff --git a/src/calibre/gui2/catalog/catalog_epub_mobi.ui b/src/calibre/gui2/catalog/catalog_epub_mobi.ui
index 1fd3088f46..4dff426ee6 100644
--- a/src/calibre/gui2/catalog/catalog_epub_mobi.ui
+++ b/src/calibre/gui2/catalog/catalog_epub_mobi.ui
@@ -726,7 +726,7 @@ The default pattern \[.+\]|\+ excludes tags of the form [tag], e.g., [Test book]
                   <double>1.000000000000000</double>
                  </property>
                  <property name="maximum">
-                  <double>2.000000000000000</double>
+                  <double>5.000000000000000</double>
                  </property>
                  <property name="singleStep">
                   <double>0.100000000000000</double>