diff --git a/src/devices/solar.cpp b/src/devices/solar.cpp
index ac342a6cb..7999b24ab 100644
--- a/src/devices/solar.cpp
+++ b/src/devices/solar.cpp
@@ -35,7 +35,7 @@ Solar::Solar(uint8_t device_type, uint8_t device_id, uint8_t product_id, const s
 
     if (flags == EMSdevice::EMS_DEVICE_FLAG_SM100) {
         if (device_id == 0x2A) {
-            register_telegram_type(0x07D6, F("SM100wwTemperatur"), false, [&](std::shared_ptr<const Telegram> t) { process_SM100wwTemperature(t); });
+            register_telegram_type(0x07D6, F("SM100wwTemperature"), false, [&](std::shared_ptr<const Telegram> t) { process_SM100wwTemperature(t); });
             register_telegram_type(0x07AA, F("SM100wwStatus"), false, [&](std::shared_ptr<const Telegram> t) { process_SM100wwStatus(t); });
             register_telegram_type(0x07AB, F("SM100wwCommand"), false, [&](std::shared_ptr<const Telegram> t) { process_SM100wwCommand(t); });
         } else {