diff --git a/modules/openapi-generator/src/main/resources/go/client.mustache b/modules/openapi-generator/src/main/resources/go/client.mustache
index 4fd2e926f163..71db41037b27 100644
--- a/modules/openapi-generator/src/main/resources/go/client.mustache
+++ b/modules/openapi-generator/src/main/resources/go/client.mustache
@@ -376,7 +376,7 @@ func setBody(body interface{}, contentType string) (bodyBuf *bytes.Buffer, err e
 	} else if jsonCheck.MatchString(contentType) {
 		err = json.NewEncoder(bodyBuf).Encode(body)
 	} else if xmlCheck.MatchString(contentType) {
-		xml.NewEncoder(bodyBuf).Encode(body)
+		err = xml.NewEncoder(bodyBuf).Encode(body)
 	}
 
 	if err != nil {
diff --git a/samples/client/petstore/go/go-petstore/client.go b/samples/client/petstore/go/go-petstore/client.go
index 4e23947fc10c..e057b7452911 100644
--- a/samples/client/petstore/go/go-petstore/client.go
+++ b/samples/client/petstore/go/go-petstore/client.go
@@ -387,7 +387,7 @@ func setBody(body interface{}, contentType string) (bodyBuf *bytes.Buffer, err e
 	} else if jsonCheck.MatchString(contentType) {
 		err = json.NewEncoder(bodyBuf).Encode(body)
 	} else if xmlCheck.MatchString(contentType) {
-		xml.NewEncoder(bodyBuf).Encode(body)
+		err = xml.NewEncoder(bodyBuf).Encode(body)
 	}
 
 	if err != nil {