diff --git a/fhem/FHEM/33_readingsGroup.pm b/fhem/FHEM/33_readingsGroup.pm
index 0c9a6a263..93fa01d22 100644
--- a/fhem/FHEM/33_readingsGroup.pm
+++ b/fhem/FHEM/33_readingsGroup.pm
@@ -30,7 +30,7 @@ use vars qw(%FW_hiddenroom);
 use vars qw(%FW_visibleDeviceHash);
 use vars qw(%FW_webArgs); # all arguments specified in the GET
 
-my @mapping_attrs = qw( commands mapping nameIcon cellStyle nameStyle valueColumn valueColumns valueFormat valuePrefix valueSuffix valueIcon valueStyle );
+my @mapping_attrs = qw( commands:textField-long mapping:textField-long nameIcon:textField-long cellStyle:textField-long nameStyle:textField-long valueColumn:textField-long valueColumns:textField-long valueFormat:textField-long valuePrefix:textField-long valueSuffix:textField-long valueIcon:textField-long valueStyle:textField-long );
 
 sub readingsGroup_Initialize($)
 {
diff --git a/fhem/FHEM/33_readingsProxy.pm b/fhem/FHEM/33_readingsProxy.pm
index 13c1536d7..e15384a75 100644
--- a/fhem/FHEM/33_readingsProxy.pm
+++ b/fhem/FHEM/33_readingsProxy.pm
@@ -37,7 +37,7 @@ sub readingsProxy_Initialize($)
   $hash->{AttrList} = "disable:1 "
                       ."getList "
                       ."setList "
-                      ."getFn setFn valueFn "
+                      ."getFn:textField-long setFn:textField-long valueFn:textField-long "
                       .$readingFnAttributes;
 }