diff --git a/dlib/svm/empirical_kernel_map_abstract.h b/dlib/svm/empirical_kernel_map_abstract.h
index 9e4bb2c352f47e3501529cb58dccb5723cc46d5c..e6fe76748bbce10ecada6379d3dbbf5cce0b2af8 100644
--- a/dlib/svm/empirical_kernel_map_abstract.h
+++ b/dlib/svm/empirical_kernel_map_abstract.h
@@ -28,7 +28,7 @@ namespace dlib
 
             WHAT THIS OBJECT REPRESENTS
                 This object represents a map from objects of sample_type (the kind of object 
-                the kernel function operates on) to finite dimensional column vectors which 
+                a kernel function operates on) to finite dimensional column vectors which 
                 represent points in the kernel feature space defined by whatever kernel 
                 is used with this object.