diff --git a/src/login.rs b/src/login.rs
index 80dfc1a..a1fda65 100644
--- a/src/login.rs
+++ b/src/login.rs
@@ -86,6 +86,12 @@ mod tests {
         assert_serialized("request/login.xml", &object);
     }
 
+    #[test]
+    fn command_no_extension() {
+        let object = Login::new("username", "password", Some("new-password"), None);
+        assert_serialized("request/login_no_extension.xml", &object);
+    }
+
     #[test]
     fn response() {
         let object = response_from_file::<Login>("response/login.xml");
diff --git a/tests/resources/request/login_no_extension.xml b/tests/resources/request/login_no_extension.xml
new file mode 100644
index 0000000..26e1cbd
--- /dev/null
+++ b/tests/resources/request/login_no_extension.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
+    <command>
+        <login>
+            <clID>username</clID>
+            <pw>password</pw>
+            <newPW>new-password</newPW>
+            <options>
+                <version>1.0</version>
+                <lang>en</lang>
+            </options>
+            <svcs>
+                <objURI>urn:ietf:params:xml:ns:host-1.0</objURI>
+                <objURI>urn:ietf:params:xml:ns:contact-1.0</objURI>
+                <objURI>urn:ietf:params:xml:ns:domain-1.0</objURI>
+            </svcs>
+        </login>
+        <clTRID>cltrid:1626454866</clTRID>
+    </command>
+</epp>