diff --git a/fhem/CHANGED b/fhem/CHANGED
index 0144940fe..b3cd539c3 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,6 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+  - bugfix:  88_HMCCU: Fixed device definition bug.
   - bugfix:  88_HMCCU: Fixed shutdown bug.
   - bugfix:  32_withings: API endpoint change to Nokia servers
   - feature: 93_DbRep: V8.0.0, restoreMySQL for clientSide dumps implemented
diff --git a/fhem/FHEM/88_HMCCUCHN.pm b/fhem/FHEM/88_HMCCUCHN.pm
index db6a3282f..cee780b66 100644
--- a/fhem/FHEM/88_HMCCUCHN.pm
+++ b/fhem/FHEM/88_HMCCUCHN.pm
@@ -4,7 +4,7 @@
 #
 #  $Id$
 #
-#  Version 4.3
+#  Version 4.3.001
 #
 #  (c) 2018 zap (zap01 <at> t-online <dot> de)
 #
@@ -123,7 +123,7 @@ sub HMCCUCHN_Define ($@)
 	while (defined ($arg)) {
 		return $usage if ($n == 3);
 		if    ($arg eq 'readonly') { $hash->{statevals} = $arg; }
-		elsif ($arg eq 'defaults' && !$init_done) { HMCCU_SetDefaults ($hash); }
+		elsif ($arg eq 'defaults' && $init_done) { HMCCU_SetDefaults ($hash); }
 		else { return $usage; }
 		$n++;
 		$arg = shift @$a;
diff --git a/fhem/FHEM/88_HMCCUDEV.pm b/fhem/FHEM/88_HMCCUDEV.pm
index 0e4a6f7e3..72f1c4fbb 100644
--- a/fhem/FHEM/88_HMCCUDEV.pm
+++ b/fhem/FHEM/88_HMCCUDEV.pm
@@ -4,7 +4,7 @@
 #
 #  $Id$
 #
-#  Version 4.3
+#  Version 4.3.001
 #
 #  (c) 2018 zap (zap01 <at> t-online <dot> de)
 #
@@ -126,7 +126,7 @@ sub HMCCUDEV_Define ($@)
 	# Parse optional command line parameters
 	foreach my $arg (@$a) {
 		if    ($arg eq 'readonly') { $hash->{statevals} = $arg; }
-		elsif ($arg eq 'defaults' && !$init_done) { HMCCU_SetDefaults ($hash); }
+		elsif ($arg eq 'defaults' && $init_done) { HMCCU_SetDefaults ($hash); }
 		elsif ($arg =~ /^[0-9]+$/) { $attr{$name}{statechannel} = $arg; }
 		else { return $usage; }
 	}