diff --git a/neosensor/libraries/neocampus_drivers/SCD4x.h b/neosensor/libraries/neocampus_drivers/SCD4x.h
index ca37674a4f77c5fbcf90cf0fc2d5d4c0a3d5f579..0c55c194f25f7aa31ea70a886e10a9a62e2cb7b0 100644
--- a/neosensor/libraries/neocampus_drivers/SCD4x.h
+++ b/neosensor/libraries/neocampus_drivers/SCD4x.h
@@ -67,9 +67,9 @@ enum class sht3xCmd_t : uint16_t {
   set_ambiant_pressure                    = 0xe000, // execution time: 1ms
 
   // field calibration
-  perform_forced_calibration              = 0x362f // execution time: 400ms
-  set_automatic_self_calibration_enabled  = 0x2416 // execution time: 1ms
-  get_automatic_self_calibration_enabled  = 0x2313 // execution time: 1ms
+  perform_forced_calibration              = 0x362f, // execution time: 400ms
+  set_automatic_self_calibration_enabled  = 0x2416, // execution time: 1ms
+  get_automatic_self_calibration_enabled  = 0x2313, // execution time: 1ms
   
   // low-power operations
   start_low_power_periodoc_measurement    = 0x21ac, // 30s measurement delay