diff --git a/dispatch/sdk/v1/dispatch.proto b/dispatch/sdk/v1/dispatch.proto
index 7f42588..a4913c7 100644
--- a/dispatch/sdk/v1/dispatch.proto
+++ b/dispatch/sdk/v1/dispatch.proto
@@ -32,7 +32,7 @@ message DispatchRequest {
   option (buf.validate.message).cel = {
     id: "dispatch.request.calls.endpoint.scheme",
     message: "Call endpoint must be a http, https or a bridge URL or an AWS Lambda ARN",
-    expression: "this.calls.all(call, call.endpoint.startsWith('http://') || call.endpoint.startsWith('https://') || call.endpoint.startsWith('bridge://')) || call.endpoint.startsWith('arn:aws:lambda')"
+    expression: "this.calls.all(call, call.endpoint.startsWith('http://') || call.endpoint.startsWith('https://') || call.endpoint.startsWith('bridge://') || call.endpoint.startsWith('arn:aws:lambda'))"
   };
 
   // List of calls to dispatch.