diff --git a/fhem/FHEM/36_PCA301.pm b/fhem/FHEM/36_PCA301.pm
index be53a3331..84e10981f 100644
--- a/fhem/FHEM/36_PCA301.pm
+++ b/fhem/FHEM/36_PCA301.pm
@@ -208,7 +208,7 @@ PCA301_Parse($$)
 
   $rhash->{PCA301_lastRcv} = TimeNow();
 
-  my $readonly = AttrVal($name, "readonly", "0" );
+  my $readonly = AttrVal($rname, "readonly", "0" );
 
   if( $cmd eq 0x04 ) {
     my $state = $data==0x00?"off":"on";