diff --git a/src/calibre/gui2/dialogs/metadata_bulk.py b/src/calibre/gui2/dialogs/metadata_bulk.py
index f4eb5f50a0..6bdcb215fd 100644
--- a/src/calibre/gui2/dialogs/metadata_bulk.py
+++ b/src/calibre/gui2/dialogs/metadata_bulk.py
@@ -16,6 +16,7 @@ from qt.core import (
     QDialogButtonBox,
     QFont,
     QGridLayout,
+    QIcon,
     QInputDialog,
     QLabel,
     QLineEdit,
@@ -644,6 +645,10 @@ class MetadataBulkDialog(QDialog, Ui_MetadataBulkDialog):
         self.button_transform_authors.clicked.connect(self.transform_authors)
         self.button_transform_publishers.clicked.connect(self.transform_publishers)
         self.tag_map_rules = self.author_map_rules = self.publisher_map_rules = ()
+        tuple(map(lambda b: (b.clicked.connect(self.clear_transform_rules_for), b.setIcon(QIcon.ic('clear_left.png')), b.setToolTip(_(
+            'Clear the rules'))),
+            (self.button_clear_tags_rules, self.button_clear_authors_rules, self.button_clear_publishers_rules)
+        ))
         self.update_transform_labels()
         self.central_widget.setCurrentIndex(tab)
         self.exec()
@@ -657,6 +662,19 @@ class MetadataBulkDialog(QDialog, Ui_MetadataBulkDialog):
         f(self.label_transform_tags, len(self.tag_map_rules))
         f(self.label_transform_authors, len(self.author_map_rules))
         f(self.label_transform_publishers, len(self.publisher_map_rules))
+        self.button_clear_tags_rules.setVisible(bool(self.tag_map_rules))
+        self.button_clear_authors_rules.setVisible(bool(self.author_map_rules))
+        self.button_clear_publishers_rules.setVisible(bool(self.publisher_map_rules))
+
+    def clear_transform_rules_for(self):
+        n = self.sender().objectName()
+        if 'tags' in n:
+            self.tag_map_rules = ()
+        elif 'authors' in n:
+            self.author_map_rules = ()
+        elif 'publisher' in n:
+            self.publisher_map_rules = ()
+        self.update_transform_labels()
 
     def _change_transform_rules(self, RulesDialog, which):
         d = RulesDialog(self)
diff --git a/src/calibre/gui2/dialogs/metadata_bulk.ui b/src/calibre/gui2/dialogs/metadata_bulk.ui
index 7aff2dd06f..73190767b6 100644
--- a/src/calibre/gui2/dialogs/metadata_bulk.ui
+++ b/src/calibre/gui2/dialogs/metadata_bulk.ui
@@ -1344,7 +1344,13 @@ not multiple and the destination field is multiple</string>
           </widget>
          </item>
          <item>
-          <widget class="QLabel" name="label_transform_tags">
+          <widget class="QLabel" name="label_transform_tags"/>
+         </item>
+         <item>
+          <widget class="QToolButton" name="button_clear_tags_rules">
+           <property name="text">
+            <string>...</string>
+           </property>
           </widget>
          </item>
          <item>
@@ -1372,7 +1378,13 @@ not multiple and the destination field is multiple</string>
           </widget>
          </item>
          <item>
-          <widget class="QLabel" name="label_transform_authors">
+          <widget class="QLabel" name="label_transform_authors"/>
+         </item>
+         <item>
+          <widget class="QToolButton" name="button_clear_authors_rules">
+           <property name="text">
+            <string>...</string>
+           </property>
           </widget>
          </item>
          <item>
@@ -1400,7 +1412,13 @@ not multiple and the destination field is multiple</string>
           </widget>
          </item>
          <item>
-          <widget class="QLabel" name="label_transform_publishers">
+          <widget class="QLabel" name="label_transform_publishers"/>
+         </item>
+         <item>
+          <widget class="QToolButton" name="button_clear_publishers_rules">
+           <property name="text">
+            <string>...</string>
+           </property>
           </widget>
          </item>
          <item>