diff --git a/models/workflow/graph/link.go b/models/workflow/graph/link.go
index bffe2e7..e23a7c2 100644
--- a/models/workflow/graph/link.go
+++ b/models/workflow/graph/link.go
@@ -1,9 +1,12 @@
 package graph
 
+import "cloud.o-forge.io/core/oc-lib/models/common/models"
+
 type StorageProcessingGraphLink struct {
-	Write       bool   `json:"write" bson:"write"`
-	Source      string `json:"source" bson:"source"`
-	Destination string `json:"destination" bson:"destination"`
+	Write       bool           `json:"write" bson:"write"`
+	Source      string         `json:"source" bson:"source"`
+	Destination string         `json:"destination" bson:"destination"`
+	Env         []models.Param `json:"env" bson:"env"`
 }
 
 // GraphLink is a struct that represents a link between two items in a graph