diff --git a/src/calibre/gui2/convert/regex_builder.ui b/src/calibre/gui2/convert/regex_builder.ui
index e7b08928c1..35863c0480 100644
--- a/src/calibre/gui2/convert/regex_builder.ui
+++ b/src/calibre/gui2/convert/regex_builder.ui
@@ -31,7 +31,7 @@
        <item>
         <widget class="QPushButton" name="test">
          <property name="text">
-          <string>Test</string>
+          <string>&amp;Test</string>
          </property>
         </widget>
        </item>
diff --git a/src/calibre/gui2/filename_pattern.ui b/src/calibre/gui2/filename_pattern.ui
index d70724b59d..0a0e282985 100644
--- a/src/calibre/gui2/filename_pattern.ui
+++ b/src/calibre/gui2/filename_pattern.ui
@@ -83,7 +83,7 @@
         <item>
          <widget class="QPushButton" name="test_button">
           <property name="text">
-           <string>Test</string>
+           <string>&amp;Test</string>
           </property>
          </widget>
         </item>