diff --git a/issue104_test.go b/issue104_test.go
new file mode 100644
index 0000000..dfbd3ff
--- /dev/null
+++ b/issue104_test.go
@@ -0,0 +1,48 @@
+package mergo
+
+import (
+	"fmt"
+	"reflect"
+	"testing"
+)
+
+type Record struct {
+	Data    map[string]interface{}
+	Mapping map[string]string
+}
+
+func StructToRecord(in interface{}) *Record {
+	rec := Record{}
+	rec.Data = make(map[string]interface{})
+	rec.Mapping = make(map[string]string)
+	typ := reflect.TypeOf(in)
+	for i := 0; i < typ.NumField(); i++ {
+		field := typ.Field(i)
+		dbFieldName := field.Tag.Get("db")
+
+		fmt.Printf("%d %v, tags: %v\n", i, field.Name, dbFieldName)
+		if dbFieldName != "" {
+			rec.Mapping[field.Name] = dbFieldName
+		}
+	}
+
+	Map(&rec.Data, in)
+	return &rec
+}
+
+func TestStructToRecord(t *testing.T) {
+	type A struct {
+		Name string `json:"name" db:"name"`
+		CIDR string `json:"cidr" db:"cidr"`
+	}
+	type Record struct {
+		Data    map[string]interface{}
+		Mapping map[string]string
+	}
+	a := A{Name: "David", CIDR: "10.0.0.0/8"}
+	rec := StructToRecord(a)
+	fmt.Printf("rec: %+v\n", rec)
+	if len(rec.Mapping) < 2 {
+		t.Fatalf("struct to record failed, no mapping, struct missing tags?, rec: %+v, a: %+v ", rec, a)
+	}
+}