diff --git a/fhem/FHEM/52_I2C_K30.pm b/fhem/FHEM/52_I2C_K30.pm
index f7fa004e3..68f1a6ef4 100644
--- a/fhem/FHEM/52_I2C_K30.pm
+++ b/fhem/FHEM/52_I2C_K30.pm
@@ -260,6 +260,9 @@ sub I2C_K30_DbLog_splitFn($) {
 1;
 
 =pod
+=item device
+=item summary read SenseAir K30 CO2 sensor via I2C bus
+=item summary_DE SenseAir K30 CO2 Sensor über I2C auslesen
 =begin html
 
 <a name="I2C_K30"></a>