diff --git a/src/calibre/ebooks/oeb/stylizer.py b/src/calibre/ebooks/oeb/stylizer.py
index e9f806db0f..c87216caeb 100644
--- a/src/calibre/ebooks/oeb/stylizer.py
+++ b/src/calibre/ebooks/oeb/stylizer.py
@@ -534,7 +534,7 @@ class Style(object):
         return ans
 
     def img_size(self, width, height):
-        ' Return the final size of an <img> given that it points to an imafe of size widthxheight '
+        ' Return the final size of an <img> given that it points to an image of size widthxheight '
         return self.img_dimension('width', width), self.img_dimension('height', height)
 
     @property