diff --git a/src/rpc/response.ts b/src/rpc/response.ts
index 0a094923..d5b20adc 100644
--- a/src/rpc/response.ts
+++ b/src/rpc/response.ts
@@ -236,7 +236,7 @@ export class InfoGetDeployResult {
   @jsonArrayMember(DeployExecutionResult, {
     name: 'execution_results'
   })
-  executionResultsV1: DeployExecutionResult[];
+  executionResultsV1?: DeployExecutionResult[];
 
   rawJSON: any;