diff --git a/components/event_store/service/event_store_server.py b/components/event_store/service/event_store_server.py
index 2c0969c..39fdc17 100644
--- a/components/event_store/service/event_store_server.py
+++ b/components/event_store/service/event_store_server.py
@@ -45,7 +45,7 @@ def api_get_of_key(key):
     return el.get_list_of(key)
 
 
-@app.route("api/keys/<key>/<index>")
+@app.route("/api/keys/<key>/<index>/")
 def api_get_index_of_key(key, index):
     return el.get_index_of(key, index)