diff --git a/fhem/CHANGED b/fhem/CHANGED
index 23fbc0c45..3e549258c 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,7 @@
 # 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:  73_AutoShuttersControl: fix bug in call
+                             IsAfterShuttersTimeBlocking()
  - bugfix:  73_AutoShuttersControl: fix fix numeric eq
  - new:     50_SSChatBot.pm: module to integrate Synology Chat Server
                              (SSCam is also updated due to compatibility)
diff --git a/fhem/lib/FHEM/Automation/ShuttersControl/Shading.pm b/fhem/lib/FHEM/Automation/ShuttersControl/Shading.pm
index 98af64e6a..afba795f5 100644
--- a/fhem/lib/FHEM/Automation/ShuttersControl/Shading.pm
+++ b/fhem/lib/FHEM/Automation/ShuttersControl/Shading.pm
@@ -219,7 +219,7 @@ sub ShadingProcessing {
           . $azimuthRight
           . ', Ist es nach der Zeitblockadezeit: '
           . (
-            FHEM::Automation::ShuttersControl::IsAfterShuttersTimeBlocking(
+            FHEM::Automation::ShuttersControl::Helper::IsAfterShuttersTimeBlocking(
                 $shuttersDev) ? 'JA' : 'NEIN'
           )
           . ', Das Rollo ist in der Beschattung und wurde manuell gefahren: '
@@ -419,7 +419,7 @@ sub ShadingProcessing {
 
     ShadingProcessingDriveCommand( $hash, $shuttersDev )
       if (
-        FHEM::Automation::ShuttersControl::IsAfterShuttersTimeBlocking(
+        FHEM::Automation::ShuttersControl::Helper::IsAfterShuttersTimeBlocking(
             $shuttersDev)
         && !$FHEM::Automation::ShuttersControl::shutters
         ->getShadingManualDriveStatus