diff --git a/fhem/FHEM/42_SMARTMON.pm b/fhem/FHEM/42_SMARTMON.pm
index 6869c0dba..374ff5888 100644
--- a/fhem/FHEM/42_SMARTMON.pm
+++ b/fhem/FHEM/42_SMARTMON.pm
@@ -401,7 +401,7 @@ sub SMARTMON_readDeviceData($%) {
         $hash->{DEVICE_SERIAL}=$v;
       }
       if($k eq "Firmware Version") {
-        $hash->{DEVICE_FIRMARE}=$v;
+        $hash->{DEVICE_FIRMWARE}=$v;
       }
       if($k eq "User Capacity") {
         $hash->{DEVICE_CAPACITY}=$v;