package mergo_test import ( "testing" "github.com/imdario/mergo" ) type structWithBlankField struct { _ struct{} A struct{} } func TestIssue174(t *testing.T) { dst := structWithBlankField{} src := structWithBlankField{} if err := mergo.Merge(&dst, src, mergo.WithOverride); err != nil { t.Error(err) } }