diff --git a/fhem/fhem.pl b/fhem/fhem.pl
index 675030330..eb3e422e7 100755
--- a/fhem/fhem.pl
+++ b/fhem/fhem.pl
@@ -4851,7 +4851,7 @@ parseParams($;$)
 
     # the key can not start with a { -> it must be a perl expression
     } elsif( $key =~ m/^\s*{/ ) {
-      $value = "$key = $value";
+      $value = $param;
       $key = undef;
     }