diff --git a/examples/sites/demos/apis/chart-demo.js b/examples/sites/demos/apis/chart-demo.js
index d08cc1171..e60ee136b 100644
--- a/examples/sites/demos/apis/chart-demo.js
+++ b/examples/sites/demos/apis/chart-demo.js
@@ -53,7 +53,7 @@ export default {
         {
           name: 'extend',
           typeAnchorName: 'chart#IChartProps',
-          type: 'objcet',
+          type: 'object',
           defaultValue: '',
           desc: {
             'zh-CN': 'echarts 的配置项',
diff --git a/examples/sites/demos/apis/chart-docs.js b/examples/sites/demos/apis/chart-docs.js
index d08cc1171..e60ee136b 100644
--- a/examples/sites/demos/apis/chart-docs.js
+++ b/examples/sites/demos/apis/chart-docs.js
@@ -53,7 +53,7 @@ export default {
         {
           name: 'extend',
           typeAnchorName: 'chart#IChartProps',
-          type: 'objcet',
+          type: 'object',
           defaultValue: '',
           desc: {
             'zh-CN': 'echarts 的配置项',
diff --git a/examples/sites/demos/apis/chart-events.js b/examples/sites/demos/apis/chart-events.js
index d08cc1171..e60ee136b 100644
--- a/examples/sites/demos/apis/chart-events.js
+++ b/examples/sites/demos/apis/chart-events.js
@@ -53,7 +53,7 @@ export default {
         {
           name: 'extend',
           typeAnchorName: 'chart#IChartProps',
-          type: 'objcet',
+          type: 'object',
           defaultValue: '',
           desc: {
             'zh-CN': 'echarts 的配置项',
diff --git a/examples/sites/demos/apis/chart-question.js b/examples/sites/demos/apis/chart-question.js
index d08cc1171..e60ee136b 100644
--- a/examples/sites/demos/apis/chart-question.js
+++ b/examples/sites/demos/apis/chart-question.js
@@ -53,7 +53,7 @@ export default {
         {
           name: 'extend',
           typeAnchorName: 'chart#IChartProps',
-          type: 'objcet',
+          type: 'object',
           defaultValue: '',
           desc: {
             'zh-CN': 'echarts 的配置项',
diff --git a/examples/sites/demos/apis/chart.js b/examples/sites/demos/apis/chart.js
index 9032d9dad..01d253e75 100644
--- a/examples/sites/demos/apis/chart.js
+++ b/examples/sites/demos/apis/chart.js
@@ -53,7 +53,7 @@ export default {
         {
           name: 'extend',
           typeAnchorName: 'chart#IChartProps',
-          type: 'objcet',
+          type: 'object',
           defaultValue: '',
           desc: {
             'zh-CN': 'echarts 的配置项',