diff --git a/modules/stitching/doc/blenders.rst b/modules/stitching/doc/blenders.rst
index b1a9e702e1..7c311c5714 100644
--- a/modules/stitching/doc/blenders.rst
+++ b/modules/stitching/doc/blenders.rst
@@ -47,7 +47,7 @@ Processes the image.
 
     :param img: Source image
 
-    :param mask: Source image masks
+    :param mask: Source image mask
     
     :param tl: Source image top-left corners