diff --git a/viper_test.go b/viper_test.go
index 5596724..1e7e266 100644
--- a/viper_test.go
+++ b/viper_test.go
@@ -513,12 +513,17 @@ func TestMapTo(t *testing.T) {
 		"ip":   "127.0.0.1",
 		"port": 1234,
 	})
+	SetDefault("version", "1.0.01")
 
 	var service Service
+	var version string
 	err := MapTo("service", &service)
 	assert.NoError(t, err)
 	assert.Equal(t, Get("service.port"), service.Port)
 	assert.Equal(t, Get("service.ip"), service.IP)
+	err = MapTo("version", &version)
+	assert.NoError(t, err)
+	assert.Equal(t, Get("version"), version)
 
 }