diff --git a/src/Response/MessagesSent.php b/src/Response/MessagesSent.php
index b46a385..24c3b18 100644
--- a/src/Response/MessagesSent.php
+++ b/src/Response/MessagesSent.php
@@ -32,6 +32,10 @@ public function ids() : array
         
         $recipients = json_decode(json_encode($this->xml), true)['recipient'];
         
+        if(count($recipients) == 1) {
+            $recipients = [$recipients];
+        }
+        
         return array_map(fn($r) => [$r['@attributes']['msisdn'] => $r['@attributes']['id']], $recipients);
     }
     
diff --git a/tests/GatewayTest.php b/tests/GatewayTest.php
index 679c213..cce9b83 100644
--- a/tests/GatewayTest.php
+++ b/tests/GatewayTest.php
@@ -113,7 +113,7 @@ public function testGatewayCanSendMessages()
         $this->assertEquals($stub, $response->getResponse()->getBody()->getContents());
     }
 
-    public function testGatewayCanReturnMessageIds()
+    public function testGatewayCanReturnMultipleMessageIds()
     {
         $stub = <<<XML
         <reply>
@@ -146,4 +146,34 @@ public function testGatewayCanReturnMessageIds()
         $this->assertEquals('123', $firstId);
         $this->assertEquals([['4512345679' => '123'], ['4512345679' => '13cab0f4-0e4f-44cf-8f84-a9eb435f36a4']], $ids);
     }
+
+    public function testGatewayCanReturnSingleMessageId()
+    {
+        $stub = <<<XML
+        <reply>
+            <recipient msisdn="4512345679" id="13cab0f4-0e4f-44cf-8f84-a9eb435f36a4" />
+        </reply>
+        XML;
+        $mockedResponse = new Response(200, [], $stub);
+
+        $mock = new MockHandler([$mockedResponse, $mockedResponse]);
+        $mockHandler = new HandlerStack($mock);
+        $client = new Client(['handler' => $mockHandler]);
+
+        $gateway = new Gateway('foo', $client);
+
+        $gateway->addMessage(
+            Message::create('foo')
+                ->from('1245')
+                ->to([
+                    new Recipient('4512345679')
+                ])
+        );
+
+        $response = $gateway->send();
+
+        $firstId = $response->id();
+
+        $this->assertEquals('13cab0f4-0e4f-44cf-8f84-a9eb435f36a4', $firstId);
+    }
 }