diff --git a/FHEM/30_tradfri.pm b/FHEM/30_tradfri.pm
index 91ef40220..58e15c461 100644
--- a/FHEM/30_tradfri.pm
+++ b/FHEM/30_tradfri.pm
@@ -370,7 +370,7 @@ tradfri_getCmd($) {
   if( my $host = AttrVal($name, 'tradfriFHEM-sshHost', undef ) ) {
     my $ssh = qx( which ssh ); chomp( $ssh );
     if( my $user = AttrVal($name, 'tradfriFHEM-sshUser', undef ) ) {
-      $ssh_cmd = "$ssh $host -u $user";
+      $ssh_cmd = "$ssh $user\@$host";
     } else {
       $ssh_cmd = "$ssh $host";
     }
diff --git a/FHEM/39_alexa.pm b/FHEM/39_alexa.pm
index 109779293..91c0a42d1 100644
--- a/FHEM/39_alexa.pm
+++ b/FHEM/39_alexa.pm
@@ -440,7 +440,7 @@ alexa_getCMD($)
   if( my $host = AttrVal($name, 'alexaFHEM-host', undef ) ) {
     my $ssh = qx( which ssh ); chomp( $ssh );
     if( my $user = AttrVal($name, 'alexaFHEM-sshUser', undef ) ) {
-      $ssh_cmd = "$ssh $host -u $user";
+      $ssh_cmd = "$ssh $user\@$host";
     } else {
       $ssh_cmd = "$ssh $host";
     }