diff --git a/timeline-gateway-service/src/main/java/com/timeline/gateway/filter/AuthenticationFilter.java b/timeline-gateway-service/src/main/java/com/timeline/gateway/filter/AuthenticationFilter.java
index 527217d..f69f8c1 100644
--- a/timeline-gateway-service/src/main/java/com/timeline/gateway/filter/AuthenticationFilter.java
+++ b/timeline-gateway-service/src/main/java/com/timeline/gateway/filter/AuthenticationFilter.java
@@ -119,7 +119,7 @@ public class AuthenticationFilter implements GlobalFilter, Ordered {
             String[] params = query.split("&");
             for (String param : params) {
                 if (param.startsWith("Authorization=")) {
-                    return param.substring("Authorization=".length());
+                    return param.substring(21);
                 }
             }
         }