diff --git a/ports/esp32/machine_i2c.c b/ports/esp32/machine_i2c.c
index 731f10e34498..e3b76477902f 100644
--- a/ports/esp32/machine_i2c.c
+++ b/ports/esp32/machine_i2c.c
@@ -51,7 +51,7 @@
 #if CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S3
 #define I2C_SCLK_FREQ XTAL_CLK_FREQ
 #elif CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2
-#define I2C_SCLK_FREQ APB_CLK_FREQ
+#define I2C_SCLK_FREQ I2C_APB_CLK_FREQ
 #else
 #error "unsupported I2C for ESP32 SoC variant"
 #endif