diff --git a/fhem/contrib/DS_Starter/77_SMAEM.pm b/fhem/contrib/DS_Starter/77_SMAEM.pm
index 1a21224f8..768a0f42d 100644
--- a/fhem/contrib/DS_Starter/77_SMAEM.pm
+++ b/fhem/contrib/DS_Starter/77_SMAEM.pm
@@ -314,7 +314,7 @@ sub SMAEM_Read ($) {
   
   $hex =~ /.*90000000(.{6})5200000000$/;                            # Firmware Version extrahieren
   if($1) {
-      my $fw = $1;
+      my $fw = hex($1);
       $fw    =~ s/^(.{2})(.{2})(.{2})/"$1.$2.$3"/e;
       $hash->{FIRMWARE} = $fw;
   }