diff --git a/go.mod b/go.mod
index 78da69f..b14e632 100644
--- a/go.mod
+++ b/go.mod
@@ -5,5 +5,5 @@ go 1.13
 require (
 	github.com/gorilla/handlers v1.4.2
 	github.com/gorilla/mux v1.7.4
-	github.com/verzth/go-utils v0.1.0
+	github.com/verzth/go-utils v0.1.1
 )
diff --git a/go.sum b/go.sum
index d5e5e4a..270dbe4 100644
--- a/go.sum
+++ b/go.sum
@@ -10,3 +10,5 @@ github.com/verzth/go-utils v0.0.1 h1:2ntXZMxhjUyegqEglNPUctbpc5NoRfF+AgNs2Q4ULN0
 github.com/verzth/go-utils v0.0.1/go.mod h1:VRAnwae+xXZT8FwlbZFKmgUB5U/DzHAfuREIxitR/FA=
 github.com/verzth/go-utils v0.1.0 h1:PheN6mb1kyAB/x4eSWUFUETZ6QrqTlUSQ0mueMZe2pQ=
 github.com/verzth/go-utils v0.1.0/go.mod h1:VRAnwae+xXZT8FwlbZFKmgUB5U/DzHAfuREIxitR/FA=
+github.com/verzth/go-utils v0.1.1 h1:IZeqWr5IP/bgVYIHZXrCQe3rx9/WUJaRrDnF5vlOOtA=
+github.com/verzth/go-utils v0.1.1/go.mod h1:VRAnwae+xXZT8FwlbZFKmgUB5U/DzHAfuREIxitR/FA=
diff --git a/request.go b/request.go
index c4ff534..635f123 100644
--- a/request.go
+++ b/request.go
@@ -207,7 +207,7 @@ func (r *Request) GetAll() map[string] interface{} {
 
 func (r *Request) Get(key string) string {
 	val := reflect.ValueOf(r.params[key])
-	if r.params[key] != nil || (val.Kind() == reflect.Slice && val.Len() > 0){
+	if r.params[key] != nil || (val.IsValid() && val.Kind() == reflect.Slice && val.Len() > 0){
 		return fmt.Sprintf("%v", r.params[key])
 	}
 	return ""
@@ -465,9 +465,13 @@ func (r *Request) Filled(keys... string) (found bool) {
 	for _, key := range keys {
 		found = found && r.has(key)
 		val := reflect.ValueOf(r.params[key])
-		switch val.Kind() {
-		case reflect.String: found = found && strings.TrimSpace(r.Get(key)) != ""
-		case reflect.Slice: found = found && val.Len() > 0
+		if val.IsValid() {
+			switch val.Kind() {
+			case reflect.String: found = found && strings.TrimSpace(r.Get(key)) != ""
+			case reflect.Slice: found = found && val.Len() > 0
+			}
+		}else{
+			found = false
 		}
 	}
 	return