diff --git a/modules/swagger-codegen/src/main/resources/rust/api.mustache b/modules/swagger-codegen/src/main/resources/rust/api.mustache
index ad9b3f26533c..14da83f68e10 100644
--- a/modules/swagger-codegen/src/main/resources/rust/api.mustache
+++ b/modules/swagger-codegen/src/main/resources/rust/api.mustache
@@ -27,7 +27,7 @@ impl<C: hyper::client::Connect> {{{classname}}}Client<C> {
 pub trait {{classname}} {
 {{#operations}}
 {{#operation}}
-    fn {{{operationId}}}(&self, {{#allParams}}{{paramName}}: {{#isString}}&str{{/isString}}{{^isString}}{{^isPrimitiveType}}{{^isContainer}}::models::{{/isContainer}}{{/isPrimitiveType}}{{{dataType}}}{{/isString}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) -> Box<Future<Item = {{^returnType}}(){{/returnType}}{{#returnType}}{{{returnType}}}{{/returnType}}, Error = Error<serde_json::Value>>>;
+    fn {{{operationId}}}(&self, {{#allParams}}{{paramName}}: {{#isString}}&str{{/isString}}{{#isUuid}}&str{{/isUuid}}{{^isString}}{{^isUuid}}{{^isPrimitiveType}}{{^isContainer}}::models::{{/isContainer}}{{/isPrimitiveType}}{{{dataType}}}{{/isUuid}}{{/isString}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) -> Box<Future<Item = {{^returnType}}(){{/returnType}}{{#returnType}}{{{returnType}}}{{/returnType}}, Error = Error<serde_json::Value>>>;
 {{/operation}}
 {{/operations}}
 }
@@ -36,7 +36,7 @@ pub trait {{classname}} {
 impl<C: hyper::client::Connect>{{classname}} for {{classname}}Client<C> {
 {{#operations}}
 {{#operation}}
-    fn {{{operationId}}}(&self, {{#allParams}}{{paramName}}: {{#isString}}&str{{/isString}}{{^isString}}{{^isPrimitiveType}}{{^isContainer}}::models::{{/isContainer}}{{/isPrimitiveType}}{{{dataType}}}{{/isString}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) -> Box<Future<Item = {{^returnType}}(){{/returnType}}{{#returnType}}{{{.}}}{{/returnType}}, Error = Error<serde_json::Value>>> {
+    fn {{{operationId}}}(&self, {{#allParams}}{{paramName}}: {{#isString}}&str{{/isString}}{{#isUuid}}&str{{/isUuid}}{{^isString}}{{^isUuid}}{{^isPrimitiveType}}{{^isContainer}}::models::{{/isContainer}}{{/isPrimitiveType}}{{{dataType}}}{{/isUuid}}{{/isString}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) -> Box<Future<Item = {{^returnType}}(){{/returnType}}{{#returnType}}{{{.}}}{{/returnType}}, Error = Error<serde_json::Value>>> {
         let configuration: &configuration::Configuration<C> = self.configuration.borrow();
 
         let method = hyper::Method::{{httpMethod}};