diff --git a/sample-implementations/RaspberryPi_Pico/sensirion_i2c_hal.c b/sample-implementations/RaspberryPi_Pico/sensirion_i2c_hal.c
index 5f280cf..5b45104 100644
--- a/sample-implementations/RaspberryPi_Pico/sensirion_i2c_hal.c
+++ b/sample-implementations/RaspberryPi_Pico/sensirion_i2c_hal.c
@@ -94,7 +94,7 @@ void sensirion_i2c_hal_free(void) {
  * @returns 0 on success, error code otherwise
  */
 int8_t sensirion_i2c_hal_read(uint8_t address, uint8_t* data, uint8_t count) {
-    int status = i2c_read_blocking(i2c_default, address, data, count, false);
+    int status = i2c_read_blocking(I2C_PORT, address, data, count, false);
 
     if (status <= 0)
         return 1;
@@ -116,7 +116,7 @@ int8_t sensirion_i2c_hal_read(uint8_t address, uint8_t* data, uint8_t count) {
 int8_t sensirion_i2c_hal_write(uint8_t address, const uint8_t* data,
                                uint8_t count) {
     // I2C Default is used (I2C0).
-    int status = i2c_write_blocking(i2c_default, address, data, count, true);
+    int status = i2c_write_blocking(I2C_PORT, address, data, count, false);
 
     if (status <= 0)
         return 1;