diff --git a/proto/internal/flow.proto b/proto/internal/flow.proto
index e5e0118..024c2be 100644
--- a/proto/internal/flow.proto
+++ b/proto/internal/flow.proto
@@ -8,7 +8,7 @@ import "node.proto";
 import "flow_definition.proto";
 
 message Flow {
-  Node starting_node = 2;
+  Node start_node = 2;
   FlowDefinition definition = 3;
 }