diff --git a/src/calibre/gui2/dialogs/tag_categories.ui b/src/calibre/gui2/dialogs/tag_categories.ui
index b49475afed..abcc5cecc8 100644
--- a/src/calibre/gui2/dialogs/tag_categories.ui
+++ b/src/calibre/gui2/dialogs/tag_categories.ui
@@ -118,6 +118,9 @@
          <property name="toolTip">
           <string>Enter a category name, then use the add button or the rename button</string>
          </property>
+         <property name="clearButtonEnabled">
+          <bool>true</bool>
+         </property>
         </widget>
        </item>
        <item>
diff --git a/src/calibre/gui2/dialogs/tag_list_editor.ui b/src/calibre/gui2/dialogs/tag_list_editor.ui
index d38d2b9bb1..daa3478d32 100644
--- a/src/calibre/gui2/dialogs/tag_list_editor.ui
+++ b/src/calibre/gui2/dialogs/tag_list_editor.ui
@@ -41,6 +41,9 @@
        <property name="toolTip">
         <string>Search for an item in the Tag column</string>
        </property>
+       <property name="clearButtonEnabled">
+        <bool>true</bool>
+       </property>
       </widget>
      </item>
      <item>