diff --git a/cmd/mist/ext_app.go b/cmd/mist/ext_app.go
index 7ac51db0b3b71d266b1104a6afb9c7fdee2ac61e..84041a553823117a49d0742db590b6b25327f8b3 100644
--- a/cmd/mist/ext_app.go
+++ b/cmd/mist/ext_app.go
@@ -24,7 +24,6 @@ import (
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/event"
-	"github.com/ethereum/go-ethereum/ui/qt"
 	"github.com/ethereum/go-ethereum/xeth"
 	"github.com/obscuren/qml"
 )
@@ -116,7 +115,3 @@ func (app *ExtApplication) mainLoop() {
 		}
 	}
 }
-
-func (self *ExtApplication) Watch(filterOptions map[string]interface{}, identifier string) {
-	self.filters[identifier] = qt.NewFilterFromMap(filterOptions, self.eth)
-}
diff --git a/ui/qt/filter.go b/ui/qt/filter.go
index 48e8a7faedc1b82ffb82d69201c4e90813637fd7..090260e4efa4a7895b4459e54450ec6e2b8f3087 100644
--- a/ui/qt/filter.go
+++ b/ui/qt/filter.go
@@ -1,30 +1 @@
 package qt
-
-import (
-	"github.com/ethereum/go-ethereum/core"
-	"github.com/ethereum/go-ethereum/ui"
-	"github.com/obscuren/qml"
-)
-
-func NewFilterFromMap(object map[string]interface{}, eth core.Backend) *core.Filter {
-	filter := ui.NewFilterFromMap(object, eth)
-
-	if object["topics"] != nil {
-		filter.SetTopics(makeTopics(object["topics"]))
-	}
-
-	return filter
-}
-
-func makeTopics(v interface{}) (d [][]byte) {
-	if qList, ok := v.(*qml.List); ok {
-		var s []string
-		qList.Convert(&s)
-
-		d = ui.MakeTopics(s)
-	} else if str, ok := v.(string); ok {
-		d = ui.MakeTopics(str)
-	}
-
-	return
-}