diff --git a/mozilla/themes/classic/global/mac/autocomplete.css b/mozilla/themes/classic/global/mac/autocomplete.css
index 36b361f20a7..6a229d481db 100644
--- a/mozilla/themes/classic/global/mac/autocomplete.css
+++ b/mozilla/themes/classic/global/mac/autocomplete.css
@@ -30,6 +30,8 @@ textbox[type="autocomplete"]
     padding             : 1px 2px;
     background-color    : #CCCCCC;
     list-style-image    : url("chrome://global/skin/arrow-dn.gif");
+    -moz-binding        : url("chrome://global/skin/classicBindings.xml#autocomplete-history-button");
+
   }
 
 .autocomplete-history-button[open="true"]
diff --git a/mozilla/themes/classic/global/mac/classicBindings.xml b/mozilla/themes/classic/global/mac/classicBindings.xml
index ffc374ea9b7..1e848e0d759 100644
--- a/mozilla/themes/classic/global/mac/classicBindings.xml
+++ b/mozilla/themes/classic/global/mac/classicBindings.xml
@@ -213,5 +213,13 @@
       <xul:text class="toolbarbutton-top-text" inherits="value=label,crop"/>
     </content>
   </binding>  
+  
+    <binding id="autocomplete-history-button" extends="xul:box">
+    <content>
+      <xul:box class="autocomplete-history-button-internal-box" autostretch="never">
+        <children/>
+      </xul:box>
+    </content>
+  </binding>
 
 </bindings>