diff --git a/packages/neuron-wallet/src/database/chain/entities/input.ts b/packages/neuron-wallet/src/database/chain/entities/input.ts
index bf498f4e6b..b72bb12f30 100644
--- a/packages/neuron-wallet/src/database/chain/entities/input.ts
+++ b/packages/neuron-wallet/src/database/chain/entities/input.ts
@@ -64,6 +64,7 @@ export default class Input extends BaseEntity {
       previousOutput: this.previousOutput(),
       capacity: this.capacity,
       lockHash: this.lockHash,
+      lock: this.lock,
     }
   }
 }
diff --git a/packages/neuron-wallet/src/types/cell-types.ts b/packages/neuron-wallet/src/types/cell-types.ts
index 150dec9946..05f0659d68 100644
--- a/packages/neuron-wallet/src/types/cell-types.ts
+++ b/packages/neuron-wallet/src/types/cell-types.ts
@@ -62,7 +62,7 @@ export interface Input {
   since?: string
   capacity?: string | null
   lockHash?: string | null
-  lock?: Script
+  lock?: Script | null
 }
 
 export interface Cell {