diff --git a/proto/aquila/action_execute.proto b/proto/aquila/action_execute.proto
index 899dcad..d3148d4 100644
--- a/proto/aquila/action_execute.proto
+++ b/proto/aquila/action_execute.proto
@@ -16,16 +16,13 @@ message ActionResult {
   repeated string result = 1;
 }
 
+message ActionResultRequest {}
 
-message ActionResultRequest {
+message ActionResultResponse {
   string execution_identifier = 1;
   optional ActionResult action_result = 2;
 }
 
-message ActionResultResponse {
-  bool successful = 1;
-}
-
 service ActionCallService {
   rpc Call (ActionCallRequest) returns (ActionCallResponse);
 }