diff --git a/gowsdl.go b/gowsdl.go
index dbd139b..f341098 100644
--- a/gowsdl.go
+++ b/gowsdl.go
@@ -456,6 +456,11 @@ var reservedWordsInAttr = map[string]string{
 	"string":      "astring",
 }
 
+var specialCharacterMapping = map[string]string{
+	"+": "Plus",
+	"@": "At",
+}
+
 // Replaces Go reserved keywords to avoid compilation issues
 func replaceReservedWords(identifier string) string {
 	value := reservedWords[identifier]
@@ -476,8 +481,12 @@ func replaceAttrReservedWords(identifier string) string {
 
 // Normalizes value to be used as a valid Go identifier, avoiding compilation issues
 func normalize(value string) string {
+	for k, v := range specialCharacterMapping {
+		value = strings.ReplaceAll(value, k, v)
+	}
+
 	mapping := func(r rune) rune {
-		if r == '.' {
+		if r == '.' || r == '-' {
 			return '_'
 		}
 		if unicode.IsLetter(r) || unicode.IsDigit(r) || r == '_' {
@@ -490,7 +499,7 @@ func normalize(value string) string {
 }
 
 func goString(s string) string {
-	return strings.Replace(s, "\"", "\\\"", -1)
+	return strings.ReplaceAll(s, "\"", "\\\"")
 }
 
 var xsd2GoTypes = map[string]string{