diff --git a/lib/Controller/PrinterController.php b/lib/Controller/PrinterController.php
index f827d27..8999a13 100644
--- a/lib/Controller/PrinterController.php
+++ b/lib/Controller/PrinterController.php
@@ -64,7 +64,7 @@ class PrinterController extends Controller
             return new JSONResponse($notAllowed);
         }
 
-        if (!$this->printer->isValidOrirentation($orientation)) {
+        if (!$this->printer->isValidOrientation($orientation)) {
             return new JSONResponse($error);
         }
 
diff --git a/lib/Service/Printer.php b/lib/Service/Printer.php
index 3150e11..6f20930 100644
--- a/lib/Service/Printer.php
+++ b/lib/Service/Printer.php
@@ -34,7 +34,7 @@ class Printer
     /**
      * Validates an orientation.
      */
-    public function isValidOrirentation(string $orientation): bool
+    public function isValidOrientation(string $orientation): bool
     {
         return in_array($orientation, [
             'landscape',