diff --git a/models/workflow/graph/link.go b/models/workflow/graph/link.go
index c74b53d..b1d22fd 100644
--- a/models/workflow/graph/link.go
+++ b/models/workflow/graph/link.go
@@ -6,7 +6,7 @@ type StorageProcessingGraphLink struct {
 	Write       bool   `json:"write" bson:"write"`
 	Source      string `json:"source" bson:"source"`
 	Destination string `json:"destination" bson:"destination"`
-	FileName    string `json:"file_name" bson:"file_name"`
+	FileName    string `json:"filename" bson:"filename"`
 }
 
 // GraphLink is a struct that represents a link between two items in a graph