diff --git a/packages/jellyfish-api-core/__tests__/category/mining.test.ts b/packages/jellyfish-api-core/__tests__/category/mining.test.ts
index 10b51e40a3..5fc5bf902e 100644
--- a/packages/jellyfish-api-core/__tests__/category/mining.test.ts
+++ b/packages/jellyfish-api-core/__tests__/category/mining.test.ts
@@ -2,6 +2,7 @@ import { RegTestContainer, MasterNodeRegTestContainer } from '@defichain/testcon
 import { ContainerAdapterClient } from '../container_adapter_client'
 import waitForExpect from 'wait-for-expect'
 import { wallet } from '../../src'
+import { EstimateMode } from '../../src/category/mining'
 
 describe('non masternode', () => {
   const container = new RegTestContainer()
@@ -145,7 +146,7 @@ describe('estimatesmartfees', () => {
       }
     })
 
-    const result = await client.mining.estimateSmartFee(6, 'ECONOMICAL')
+    const result = await client.mining.estimateSmartFee(6, EstimateMode.ECONOMICAL)
     expect(result.errors).toBeUndefined()
     expect(result.blocks).toBeGreaterThan(0)
     expect(result.feerate).toBeGreaterThan(0)
diff --git a/packages/jellyfish-api-core/src/category/mining.ts b/packages/jellyfish-api-core/src/category/mining.ts
index 2c27ae89d2..c8055b58aa 100644
--- a/packages/jellyfish-api-core/src/category/mining.ts
+++ b/packages/jellyfish-api-core/src/category/mining.ts
@@ -1,5 +1,11 @@
 import { ApiClient } from '../.'
 
+export enum EstimateMode {
+  UNSET = 'UNSET',
+  ECONOMICAL = 'ECONOMICAL',
+  CONSERVATIVE = 'CONSERVATIVE'
+}
+
 /**
  * Mining RPCs for DeFi Blockchain
  */
@@ -44,7 +50,7 @@ export class Mining {
    * @param {EstimateMode} [estimateMode='CONSERVATIVE'] estimateMode of fees.
    * @returns {Promise<SmartFeeEstimation>}
    */
-  async estimateSmartFee (confirmationTarget: number, estimateMode: EstimateMode = 'CONSERVATIVE'): Promise<SmartFeeEstimation> {
+  async estimateSmartFee (confirmationTarget: number, estimateMode: EstimateMode = EstimateMode.CONSERVATIVE): Promise<SmartFeeEstimation> {
     return await this.client.call('estimatesmartfee', [confirmationTarget, estimateMode], 'number')
   }
 }
@@ -102,5 +108,3 @@ export interface SmartFeeEstimation {
   errors?: string[]
   blocks: number
 }
-
-type EstimateMode = 'UNSET' | 'ECONOMICAL' | 'CONSERVATIVE'
diff --git a/website/docs/jellyfish/api/mining.md b/website/docs/jellyfish/api/mining.md
index de4676dff9..3e3ea3ff17 100644
--- a/website/docs/jellyfish/api/mining.md
+++ b/website/docs/jellyfish/api/mining.md
@@ -107,5 +107,9 @@ interface SmartFeeEstimation {
   blocks: number
 }
 
-type EstimateMode = 'UNSET' | 'ECONOMICAL' | 'CONSERVATIVE';
+enum EstimateMode {
+  UNSET = 'UNSET',
+  ECONOMICAL = 'ECONOMICAL',
+  CONSERVATIVE = 'CONSERVATIVE'
+}
 ```