diff --git a/copy_image.md b/copy_image.md
index 2869499b..72d34d5c 100644
--- a/copy_image.md
+++ b/copy_image.md
@@ -31,7 +31,7 @@ It should be `/dev/diskN`, where `N` is a number, or `/dev/sdX`, where `X` is a
 sudo dd bs=1M if=/path/to/your/.img of=/your/device/name
 ```
 
-Do not forget to change `/path/to/your/.img` and `/your/device/name` with the appropriate values.
+<span class="glyphicon glyphicon-warning-sign"></span> Do not forget to change `/path/to/your/.img` and `/your/device/name` with the appropriate values.
 
 The command may take a few minutes, then your SD card will be ready to use. **:-)**