diff --git a/docs/docs/imaging.xml b/docs/docs/imaging.xml
index 9df16d70e..2911047a7 100644
--- a/docs/docs/imaging.xml
+++ b/docs/docs/imaging.xml
@@ -456,7 +456,7 @@
you take an image of a human face as input and are expected to identify the
locations of important facial landmarks such as the corners of the mouth
and eyes, tip of the nose, and so forth. For example, here is the output
- of dlib's 68-face-landmark shape_predictor on an image from the HELEN dataset:
+ of dlib's 68-face-landmark shape_predictor on an image from the HELEN dataset: