diff --git a/ext/bg/js/json-schema.js b/ext/bg/js/json-schema.js
index 97429211..43ba0c1d 100644
--- a/ext/bg/js/json-schema.js
+++ b/ext/bg/js/json-schema.js
@@ -204,7 +204,7 @@ class JsonSchemaProxyHandler {
 
         let okay = true;
         try {
-            JsonSchemaProxyHandler.validate(value, thenSchema);
+            JsonSchemaProxyHandler.validate(value, ifSchema, info);
         } catch (e) {
             okay = false;
         }