diff --git a/docs/en/api-reference/peripherals/adc_oneshot.rst b/docs/en/api-reference/peripherals/adc_oneshot.rst
index bec0bee186..cd197000da 100644
--- a/docs/en/api-reference/peripherals/adc_oneshot.rst
+++ b/docs/en/api-reference/peripherals/adc_oneshot.rst
@@ -142,7 +142,7 @@ where:
     * - Vmax
       - Maximum measurable input analog voltage, this is related to the ADC attenuation, please refer to `TRM <{IDF_TARGET_TRM_EN_URL}>`__ > ``On-Chip Sensor and Analog Signal Processing``.
     * - Dmax
-      -  Maximum of the output ADC raw digital reading result, which is 2^bitwidth, where bitwidth is the :cpp:member::`adc_oneshot_chan_cfg_t:bitwidth` configured before.
+      -  Maximum of the output ADC raw digital reading result, which is 2^bitwidth, where bitwidth is the :cpp:member:`adc_oneshot_chan_cfg_t::bitwidth` configured before.
 
 To do further calibration to convert the ADC raw result to voltage in mV, please refer to calibration doc :doc:`adc_calibration`.
 
diff --git a/docs/zh_CN/api-reference/peripherals/adc_oneshot.rst b/docs/zh_CN/api-reference/peripherals/adc_oneshot.rst
index 7c8687b480..95caf1c869 100644
--- a/docs/zh_CN/api-reference/peripherals/adc_oneshot.rst
+++ b/docs/zh_CN/api-reference/peripherals/adc_oneshot.rst
@@ -142,7 +142,7 @@ ADC 单次转换模式驱动基于 {IDF_TARGET_NAME} SAR ADC 模块实现，不
     * - Vmax
       - 可测量的最大模拟输入电压，与 ADC 衰减相关，请参考 `技术参考手册 <{IDF_TARGET_TRM_CN_URL}>`__ > ``片上传感器与模拟信号处理``。
     * - Dmax
-      - 输出 ADC 原始数字读取结果的最大值，即 2^位宽，位宽即之前配置的 :cpp:member:`adc_digi_pattern_config_t::bit_width`。
+      - 输出 ADC 原始数字读取结果的最大值，即 2^位宽，位宽即之前配置的 :cpp:member:`adc_oneshot_chan_cfg_t::bitwidth`。
 
 若需进一步校准，将 ADC 原始结果转换为以 mV 为单位的电压数据，请参考校准文档 :doc:`adc_calibration`。