diff --git a/validator.go b/validator.go
index b2ccb952e..ccd2a5590 100644
--- a/validator.go
+++ b/validator.go
@@ -610,7 +610,7 @@ func (v *Validate) fieldWithNameAndValue(val interface{}, current interface{}, f
 	var valueField reflect.Value
 
 	// This is a double check if coming from validate.Struct but need to be here in case function is called directly
-	if tag == noValidationTag {
+	if tag == noValidationTag || tag == "" {
 		return nil
 	}
 
diff --git a/validator_test.go b/validator_test.go
index da195dc1f..8bfff9b2c 100644
--- a/validator_test.go
+++ b/validator_test.go
@@ -231,6 +231,18 @@ func AssertMapFieldError(t *testing.T, s map[string]*FieldError, field string, e
 	EqualSkip(t, 2, val.Tag, expectedTag)
 }
 
+func TestBadKeyValidation(t *testing.T) {
+	type Test struct {
+		Name string `validate:"required, "`
+	}
+
+	tst := &Test{
+		Name: "test",
+	}
+
+	PanicMatches(t, func() { validate.Struct(tst) }, "Invalid validation tag on field Name")
+}
+
 func TestFlattenValidation(t *testing.T) {
 
 	type Inner struct {
@@ -606,13 +618,29 @@ func TestInterfaceErrValidation(t *testing.T) {
 	Equal(t, err.IsPlaceholderErr, false)
 	Equal(t, err.IsSliceOrArray, false)
 	Equal(t, len(err.SliceOrArrayErrs), 0)
+
+	type MyStruct struct {
+		A, B string
+		C    interface{}
+	}
+
+	var a MyStruct
+
+	a.A = "value"
+	a.C = "nu"
+
+	errs = validate.Struct(a)
+	Equal(t, errs, nil)
 }
 
 func TestMapDiveValidation(t *testing.T) {
 
+	n := map[int]interface{}{0: nil}
+	err := validate.Field(n, "omitempty,required")
+
 	m := map[int]string{0: "ok", 3: "", 4: "ok"}
 
-	err := validate.Field(m, "len=3,dive,required")
+	err = validate.Field(m, "len=3,dive,required")
 	NotEqual(t, err, nil)
 	Equal(t, err.IsPlaceholderErr, true)
 	Equal(t, err.IsMap, true)