diff --git a/models/models.go b/models/models.go
index becf109..0fef86d 100644
--- a/models/models.go
+++ b/models/models.go
@@ -36,6 +36,8 @@ var models = map[string]func() utils.DBObject{
 	tools.COLLABORATIVE_AREA.String():  func() utils.DBObject { return &collaborative_area.CollaborativeArea{} },
 	tools.RULE.String():                func() utils.DBObject { return &rule.Rule{} },
 	tools.BOOKING.String():             func() utils.DBObject { return &booking.Booking{} },
+	tools.WORKFLOW_HISTORY.String():    func() utils.DBObject { return &w2.WorkflowHistory{} },
+	tools.WORKSPACE_HISTORY.String():   func() utils.DBObject { return &w3.WorkspaceHistory{} },
 }
 
 // Model returns the model object based on the model type