diff --git a/schemas/2.4.0.json b/schemas/2.4.0.json
index 1c27eb16..4678d749 100644
--- a/schemas/2.4.0.json
+++ b/schemas/2.4.0.json
@@ -270,6 +270,9 @@
         "servers": {
           "$ref": "#/definitions/servers"
         },
+        "serverVariables": {
+          "$ref": "#/definitions/serverVariables"
+        },
         "channels": {
           "$ref": "#/definitions/channels"
         },