diff --git a/src/HwmonTempMain.cpp b/src/HwmonTempMain.cpp
index abcce28..c168e1e 100644
--- a/src/HwmonTempMain.cpp
+++ b/src/HwmonTempMain.cpp
@@ -65,6 +65,7 @@
     {"MAX31730", I2CDeviceType{"max31730", true}},
     {"MAX6581", I2CDeviceType{"max6581", true}},
     {"MAX6654", I2CDeviceType{"max6654", true}},
+    {"MAX6639", I2CDeviceType{"max6639", true}},
     {"NCT6779", I2CDeviceType{"nct6779", true}},
     {"NCT7802", I2CDeviceType{"nct7802", true}},
     {"SBTSI", I2CDeviceType{"sbtsi", true}},