diff --git a/simple_dwd_weatherforecast/dwdforecast.py b/simple_dwd_weatherforecast/dwdforecast.py
index 7c17729..1a5ea6b 100644
--- a/simple_dwd_weatherforecast/dwdforecast.py
+++ b/simple_dwd_weatherforecast/dwdforecast.py
@@ -86,7 +86,7 @@ class WeatherDataType(Enum):
     CLOUD_COVERAGE = ["N", "cloud_cover_total"]  # Unit: % (0..100)
     VISIBILITY = ["VV", "horizontal_visibility"]  # Unit: m
     SUN_DURATION = ["SunD1", ""]  # Unit: s
-    SUN_IRRADIANCE = ["Rad1h", "diffuse_solar_radiation_last_hour"]  # Unit: kJ/m^2
+    SUN_IRRADIANCE = ["Rad1h", "global_radiation_last_hour"]  # Unit: kJ/m^2
     FOG_PROBABILITY = ["wwM", ""]  # Unit: % (0..100)
     HUMIDITY = ["humidity", "relative_humidity"]  # Unit: %