diff --git a/examples/dnn_self_supervised_learning_ex.cpp b/examples/dnn_self_supervised_learning_ex.cpp
index 65bf216fd..3e0079414 100644
--- a/examples/dnn_self_supervised_learning_ex.cpp
+++ b/examples/dnn_self_supervised_learning_ex.cpp
@@ -113,7 +113,7 @@ rectangle make_random_cropping_rect(
     return move_rect(rect, offset);
 }
 
-// A helper function to generate different kinds of augmentations depending on prime.
+// A helper function to generate different kinds of augmentations.
 matrix<rgb_pixel> augment(
     const matrix<rgb_pixel>& image,
     dlib::rand& rnd