diff --git a/components/soc/esp32h2/i2c_periph.c b/components/soc/esp32h2/i2c_periph.c
index cb8e7fa246..efe882ff6e 100644
--- a/components/soc/esp32h2/i2c_periph.c
+++ b/components/soc/esp32h2/i2c_periph.c
@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2020-2023 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -19,4 +19,12 @@ const i2c_signal_conn_t i2c_periph_signal[SOC_I2C_NUM] = {
         .irq = ETS_I2C_EXT0_INTR_SOURCE,
         .module = PERIPH_I2C0_MODULE,
     },
+    {
+        .sda_out_sig = I2CEXT1_SDA_OUT_IDX,
+        .sda_in_sig = I2CEXT1_SDA_IN_IDX,
+        .scl_out_sig = I2CEXT1_SCL_OUT_IDX,
+        .scl_in_sig = I2CEXT1_SCL_IN_IDX,
+        .irq = ETS_I2C_EXT1_INTR_SOURCE,
+        .module = PERIPH_I2C1_MODULE,
+    },
 };