diff --git a/pkg/filter/filter.go b/pkg/filter/filter.go
index 42595ce..1e3940f 100644
--- a/pkg/filter/filter.go
+++ b/pkg/filter/filter.go
@@ -308,6 +308,7 @@ func (f *Filter) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	if unmarshal(&value) == nil {
 		f.Type = Exact
 		f.Value = value
+		f.Group = "default"
 		return nil
 	}
 
@@ -378,6 +379,7 @@ func NewExactFilter(value string) Filter {
 	return Filter{
 		Type:  Exact,
 		Value: value,
+		Group: "default",
 	}
 }
 
diff --git a/pkg/filter/filter_test.go b/pkg/filter/filter_test.go
index 381ca91..bcd15c3 100644
--- a/pkg/filter/filter_test.go
+++ b/pkg/filter/filter_test.go
@@ -485,6 +485,7 @@ func TestFilter_NewExactFilter(t *testing.T) {
 	f := filter.NewExactFilter("testing")
 
 	assert.Equal(t, f.Type, filter.Exact)
+	assert.Equal(t, f.Group, "default")
 
 	b1, err := f.Match("testing")
 	assert.NoError(t, err)
@@ -523,6 +524,7 @@ func TestFilter_Validation(t *testing.T) {
 			if tc.error {
 				assert.Error(t, errValidate)
 			} else {
+				assert.Equal(t, "default", f.Group)
 				assert.NoError(t, errValidate)
 			}
 		})