diff --git a/examples/sdp3x_manual_address/sdp3x_manual_address.ino b/examples/sdp3x_manual_address/sdp3x_manual_address.ino
index f117f0a..4249c96 100644
--- a/examples/sdp3x_manual_address/sdp3x_manual_address.ino
+++ b/examples/sdp3x_manual_address/sdp3x_manual_address.ino
@@ -5,9 +5,9 @@
 // To configure the I2C address manually, choose one of the three calls below;
 // make sure you comment out the other two, otherwise the sketch won't build!
 
-SDP3XSensor sdp(SDP3X_I2C_ADDR_21); // Address 0x21
-// SDP3XSensor sdp(SDP3X_I2C_ADDR_22); // Address 0x22
-// SDP3XSensor sdp(SDP3X_I2C_ADDR_23); // Address 0x23
+SDP3XSensor sdp(SDP3XSensor::SDP3X_I2C_ADDR_21); // Address 0x21
+// SDP3XSensor sdp(SDP3XSensor::SDP3X_I2C_ADDR_22); // Address 0x22
+// SDP3XSensor sdp(SDP3XSensor::SDP3X_I2C_ADDR_23); // Address 0x23
 
 void setup() {
   Wire.begin();