diff --git a/FHEM/55_GDS.pm b/FHEM/55_GDS.pm
index d08843350..e45c67026 100644
--- a/FHEM/55_GDS.pm
+++ b/FHEM/55_GDS.pm
@@ -251,7 +251,7 @@ sub GDS_Get($@) {
 
 	$hash->{LOCAL} = 1;
 
-	my $usage = "Unknown argument $command, choose one of help rereadcfg ".
+	my $usage = "Unknown argument $command, choose one of help:noArg rereadcfg:noArg ".
 				"list:stations,data ".
 				"alerts:".$aList." ".
 				"conditions:".$sList." ".
@@ -326,7 +326,7 @@ sub GDS_Get($@) {
 sub GDS_Set($@) {
 	my ($hash, @a) = @_;
 	my $name = $hash->{NAME};
-	my $usage =	"Unknown argument, choose one of clear help rereadcfg update ".
+	my $usage =	"Unknown argument, choose one of clear:noArg help:noArg rereadcfg:noArg update:noArg ".
 				"conditions:".$sList." ";
 
 	my $command		= lc($a[1]);
diff --git a/FHEM/98_openweathermap.pm b/FHEM/98_openweathermap.pm
index c3765ba65..236505ee1 100644
--- a/FHEM/98_openweathermap.pm
+++ b/FHEM/98_openweathermap.pm
@@ -95,7 +95,7 @@ sub
 OWO_Set($@){
 	my ($hash, @a)	= @_;
 	my $name		= $hash->{NAME};
-	my $usage		= "Unknown argument, choose one of stationById stationByGeo stationByName send";
+	my $usage		= "Unknown argument, choose one of stationById stationByGeo stationByName send:noArg";
 	my $response;
 	
 	return "No Argument given" if(!defined($a[1]));