diff --git a/src/mhz16/mhz16.h b/src/mhz16/mhz16.h
index 93daaf90..6d7856bf 100644
--- a/src/mhz16/mhz16.h
+++ b/src/mhz16/mhz16.h
@@ -50,7 +50,7 @@ namespace upm {
     /**
      * @brief MHZ16 Serial CO2 sensor library
      * @defgroup mhz16 libupm-mhz16
-     * @ingroup seeed serial gaseous
+     * @ingroup seeed uart gaseous
      */
 
     /**