diff --git a/COMPAT.md b/COMPAT.md
index 1c2b9b227..772d53a43 100644
--- a/COMPAT.md
+++ b/COMPAT.md
@@ -380,7 +380,7 @@ Modifiers:
 | json_type(json,path)               | Yes     |                                                                                                                                              |
 | json_valid(json)                   | Yes     |                                                                                                                                              |
 | json_valid(json,flags)             |         |                                                                                                                                              |
-| json_quote(value)                  |         |                                                                                                                                              |
+| json_quote(value)                  | Yes     |                                                                                                                                              |
 | json_group_array(value)            |         |                                                                                                                                              |
 | jsonb_group_array(value)           |         |                                                                                                                                              |
 | json_group_object(label,value)     |         |                                                                                                                                              |