diff --git a/extension-src/dataTool/prepareBoxplotData.ts b/extension-src/dataTool/prepareBoxplotData.ts
index 1bb733e12ec8345c7f4471b1f061c858e3fef8cc..43bd45958ab2c3d8668c56458311206fc315a508 100644
--- a/extension-src/dataTool/prepareBoxplotData.ts
+++ b/extension-src/dataTool/prepareBoxplotData.ts
@@ -42,7 +42,7 @@ function quantile(ascArr: number[], p: number): number {
  * @param {Array.<number>} rawData like
  *        [
  *            [12,232,443], (raw data set for the first box)
- *            [3843,5545,1232], (raw datat set for the second box)
+ *            [3843,5545,1232], (raw data set for the second box)
  *            ...
  *        ]
  * @param {Object} [opt]
diff --git a/src/chart/boxplot/prepareBoxplotData.ts b/src/chart/boxplot/prepareBoxplotData.ts
index f9b682d365c99dc18856e33befbb741235d158e0..a812669759e04c2dcfba00f709c7eb78adf65c38 100644
--- a/src/chart/boxplot/prepareBoxplotData.ts
+++ b/src/chart/boxplot/prepareBoxplotData.ts
@@ -37,7 +37,7 @@ export interface PrepareBoxplotDataOpt {
  * @param rawData like
  *        [
  *            [12,232,443], (raw data set for the first box)
- *            [3843,5545,1232], (raw datat set for the second box)
+ *            [3843,5545,1232], (raw data set for the second box)
  *            ...
  *        ]
  * @param opt.boundIQR=1.5 Data less than min bound is outlier.