diff --git a/python/PyQt6/core/auto_generated/processing/qgsprocessingalgorithm.sip.in b/python/PyQt6/core/auto_generated/processing/qgsprocessingalgorithm.sip.in
index 28c54aac178e..8f91679714fc 100644
--- a/python/PyQt6/core/auto_generated/processing/qgsprocessingalgorithm.sip.in
+++ b/python/PyQt6/core/auto_generated/processing/qgsprocessingalgorithm.sip.in
@@ -542,6 +542,7 @@ See the notes in :py:func:`~QgsProcessingAlgorithm.addParameter` for a descripti
 .. seealso:: :py:func:`initAlgorithm`
 %End
 
+
     virtual bool prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback )  /VirtualErrorHandler=processing_exception_handler/;
 %Docstring
 Prepares the algorithm to run using the specified ``parameters``. Algorithms should implement
diff --git a/python/core/auto_generated/processing/qgsprocessingalgorithm.sip.in b/python/core/auto_generated/processing/qgsprocessingalgorithm.sip.in
index 6d4192efc27f..fa137479bda6 100644
--- a/python/core/auto_generated/processing/qgsprocessingalgorithm.sip.in
+++ b/python/core/auto_generated/processing/qgsprocessingalgorithm.sip.in
@@ -542,6 +542,7 @@ See the notes in :py:func:`~QgsProcessingAlgorithm.addParameter` for a descripti
 .. seealso:: :py:func:`initAlgorithm`
 %End
 
+
     virtual bool prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) throw( QgsProcessingException ) /VirtualErrorHandler=processing_exception_handler/;
 %Docstring
 Prepares the algorithm to run using the specified ``parameters``. Algorithms should implement
diff --git a/src/core/processing/qgsprocessingalgorithm.cpp b/src/core/processing/qgsprocessingalgorithm.cpp
index bec0499c6c3c..4f2808525b7f 100644
--- a/src/core/processing/qgsprocessingalgorithm.cpp
+++ b/src/core/processing/qgsprocessingalgorithm.cpp
@@ -444,6 +444,11 @@ void QgsProcessingAlgorithm::removeParameter( const QString &name )
 }
 
 bool QgsProcessingAlgorithm::addOutput( QgsProcessingOutputDefinition *definition )
+{
+  return addOutput( std::unique_ptr<QgsProcessingOutputDefinition>( definition ) );
+}
+
+bool QgsProcessingAlgorithm::addOutput( std::unique_ptr<QgsProcessingOutputDefinition> definition )
 {
   if ( !definition )
     return false;
@@ -452,11 +457,10 @@ bool QgsProcessingAlgorithm::addOutput( QgsProcessingOutputDefinition *definitio
   if ( QgsProcessingAlgorithm::outputDefinition( definition->name() ) )
   {
     QgsMessageLog::logMessage( QObject::tr( "Duplicate output %1 registered for alg %2" ).arg( definition->name(), id() ), QObject::tr( "Processing" ) );
-    delete definition;
     return false;
   }
 
-  mOutputs << definition;
+  mOutputs << definition.release();
   return true;
 }
 
diff --git a/src/core/processing/qgsprocessingalgorithm.h b/src/core/processing/qgsprocessingalgorithm.h
index 5af4989a706f..d502da7f6380 100644
--- a/src/core/processing/qgsprocessingalgorithm.h
+++ b/src/core/processing/qgsprocessingalgorithm.h
@@ -554,6 +554,12 @@ class CORE_EXPORT QgsProcessingAlgorithm
      */
     bool addOutput( QgsProcessingOutputDefinition *outputDefinition SIP_TRANSFER ) SIP_HOLDGIL;
 
+    /**
+     * Same as above addOutput(QgsProcessingOutputDefinition*), but using
+     * a smart pointer for safer use.
+     */
+    bool addOutput( std::unique_ptr<QgsProcessingOutputDefinition> outputDefinition ) SIP_SKIP;
+
     /**
      * Prepares the algorithm to run using the specified \a parameters. Algorithms should implement
      * their logic for evaluating parameter values here. The evaluated parameter results should