diff --git a/plugins/api/src/yamlRestTest/resources/rest-api-spec/test/20_api.yml b/plugins/api/src/yamlRestTest/resources/rest-api-spec/test/20_api.yml
index 72f31250b86bb..b63c79418395f 100644
--- a/plugins/api/src/yamlRestTest/resources/rest-api-spec/test/20_api.yml
+++ b/plugins/api/src/yamlRestTest/resources/rest-api-spec/test/20_api.yml
@@ -8,5 +8,5 @@
 
   - match: { paths./_plugins/api.get: {} }
 
-  - match: { paths./:index/_upgrade.post: {} }
-  - match: { paths./:index/_upgrade.get: {} }
+  - match: { "paths./{index}/_upgrade.post": {} }
+  - match: { "paths./{index}/_upgrade.get": {} }
diff --git a/server/src/main/java/org/opensearch/rest/RestController.java b/server/src/main/java/org/opensearch/rest/RestController.java
index 1ddf2417baafd..22c765da1a56f 100644
--- a/server/src/main/java/org/opensearch/rest/RestController.java
+++ b/server/src/main/java/org/opensearch/rest/RestController.java
@@ -581,7 +581,7 @@ public XContentBuilder toXContent(XContentBuilder builder, Params params) throws
 
         while (all.hasNext()) {
             MethodHandlers handlers = all.next();
-            builder.startObject(handlers.getPath().replace("{", ":").replace("}", ""));
+            builder.startObject(handlers.getPath());
             for (RestRequest.Method method : handlers.getValidMethods()) {
                 builder.startObject(method.name().toLowerCase(Locale.ROOT))
                     // .field("summary", "")