diff --git a/fhem/FHEM/10_ZWave.pm b/fhem/FHEM/10_ZWave.pm
index d8f14a0d0..ca7fa3170 100755
--- a/fhem/FHEM/10_ZWave.pm
+++ b/fhem/FHEM/10_ZWave.pm
@@ -226,7 +226,7 @@ my %zwave_class = (
   NON_INTEROPERABLE        => { id => 'f0', },
   );
 my %zwave_cmdArgs = (
-  dim => "slider,0,1,100",
+  dim => "slider,0,1,99",
   );