diff --git a/docs/user-guide/annotations.md b/docs/user-guide/annotations.md
index 672a7c3ed6..11acfadf2d 100644
--- a/docs/user-guide/annotations.md
+++ b/docs/user-guide/annotations.md
@@ -39,7 +39,7 @@ It is also useful to be able to attach arbitrary non-identifying metadata, for r
 
 Like labels, annotations are key-value maps.
 
-```
+```json
 "annotations": {
   "key1" : "value1",
   "key2" : "value2"