diff --git a/packages/jellyfish-api-core/src/category/mining.ts b/packages/jellyfish-api-core/src/category/mining.ts
index c8055b58aa..7d5e87f33d 100644
--- a/packages/jellyfish-api-core/src/category/mining.ts
+++ b/packages/jellyfish-api-core/src/category/mining.ts
@@ -47,7 +47,7 @@ export class Mining {
   /**
    *
    * @param {number} confirmationTarget in blocks (1 - 1008)
-   * @param {EstimateMode} [estimateMode='CONSERVATIVE'] estimateMode of fees.
+   * @param {EstimateMode} [estimateMode=EstimateMode.CONSERVATIVE] estimateMode of fees.
    * @returns {Promise<SmartFeeEstimation>}
    */
   async estimateSmartFee (confirmationTarget: number, estimateMode: EstimateMode = EstimateMode.CONSERVATIVE): Promise<SmartFeeEstimation> {
diff --git a/website/docs/jellyfish/api/mining.md b/website/docs/jellyfish/api/mining.md
index 3e3ea3ff17..fac184ea37 100644
--- a/website/docs/jellyfish/api/mining.md
+++ b/website/docs/jellyfish/api/mining.md
@@ -98,7 +98,7 @@ Estimates the approximate fee per kilobyte needed for a transaction
 
 ```ts title="client.mining.estimateSmartFee()"
 interface mining {
-  estimateSmartFee (confirmationTarget: number, estimateMode: EstimateMode = 'CONSERVATIVE'): Promise<SmartFeeEstimation>
+  estimateSmartFee (confirmationTarget: number, estimateMode: EstimateMode = EstimateMode.CONSERVATIVE): Promise<SmartFeeEstimation>
 }
 
 interface SmartFeeEstimation {