diff --git a/app/models/cell_dependency.rb b/app/models/cell_dependency.rb
index f4816695a..e43890c1d 100644
--- a/app/models/cell_dependency.rb
+++ b/app/models/cell_dependency.rb
@@ -20,7 +20,7 @@ def to_raw
     }
   end
 
-  def parse_cell_dpes_from_ckb_transaction(ckb_transaction, cell_deps)
+  def self.parse_cell_dpes_from_ckb_transaction(ckb_transaction, cell_deps)
     return if cell_deps.blank?
 
     cell_dependencies_attrs = []