diff --git a/modules/swagger-codegen/src/main/resources/swift/model.mustache b/modules/swagger-codegen/src/main/resources/swift/model.mustache
index 96c4d2ff683..a42ff74a644 100644
--- a/modules/swagger-codegen/src/main/resources/swift/model.mustache
+++ b/modules/swagger-codegen/src/main/resources/swift/model.mustache
@@ -33,7 +33,7 @@ public class {{classname}}: JSONEncodable {
     public init() {}
 {{/unwrapRequired}}
 {{#unwrapRequired}}
-    public init({{#requiredVars}}{{^-first}}, {{/-first}}{{name}}: {{#isEnum}}{{datatypeWithEnum}}!{{/isEnum}}{{^isEnum}}{{datatype}}!{{/isEnum}}{{/requiredVars}}) {
+    public init({{#requiredVars}}{{^-first}}, {{/-first}}{{name}}: {{#isEnum}}{{datatypeWithEnum}}{{/isEnum}}{{^isEnum}}{{datatype}}{{/isEnum}}{{/requiredVars}}) {
         {{#requiredVars}}
         self.{{name}} = {{name}}
         {{/requiredVars}}