diff --git a/Yesod/Form/Jquery.hs b/Yesod/Form/Jquery.hs
--- a/Yesod/Form/Jquery.hs
+++ b/Yesod/Form/Jquery.hs
@@ -7,6 +7,7 @@
     ( YesodJquery (..)
     , jqueryDayField
     , jqueryAutocompleteField
+    , jqueryAutocompleteField'
     , googleHostedJqueryUiCss
     , JqueryDaySettings (..)
     , Default (..)
@@ -98,7 +99,13 @@
 
 jqueryAutocompleteField :: (RenderMessage site FormMessage, YesodJquery site)
                         => Route site -> Field (HandlerT site IO) Text
-jqueryAutocompleteField src = Field
+jqueryAutocompleteField = jqueryAutocompleteField' 2
+
+jqueryAutocompleteField' :: (RenderMessage site FormMessage, YesodJquery site)
+                         => Int -- ^ autocomplete minimum length
+                         -> Route site
+                         -> Field (HandlerT site IO) Text
+jqueryAutocompleteField' minLen src = Field
     { fieldParse = parseHelper $ Right
     , fieldView = \theId name attrs val isReq -> do
         toWidget [shamlet|
@@ -109,7 +116,7 @@
         addScript' urlJqueryUiJs
         addStylesheet' urlJqueryUiCss
         toWidget [julius|
-$(function(){$("##{rawJS theId}").autocomplete({source:"@{src}",minLength:2})});
+$(function(){$("##{rawJS theId}").autocomplete({source:"@{src}",minLength:#{toJSON minLen}})});
 |]
     , fieldEnctype = UrlEncoded
     }
diff --git a/yesod-form.cabal b/yesod-form.cabal
--- a/yesod-form.cabal
+++ b/yesod-form.cabal
@@ -1,5 +1,5 @@
 name:            yesod-form
-version:         1.3.14
+version:         1.3.15
 license:         MIT
 license-file:    LICENSE
 author:          Michael Snoyman <michael@snoyman.com>