diff --git a/python/gui/auto_generated/processing/qgsprocessingtoolboxmodel.sip.in b/python/gui/auto_generated/processing/qgsprocessingtoolboxmodel.sip.in
index 5fd25e83017..ed2ff190587 100644
--- a/python/gui/auto_generated/processing/qgsprocessingtoolboxmodel.sip.in
+++ b/python/gui/auto_generated/processing/qgsprocessingtoolboxmodel.sip.in
@@ -101,11 +101,11 @@ class QgsProcessingToolboxModelRecentNode : QgsProcessingToolboxModelNode
 %Docstring
 Processing toolbox model node corresponding to the recent algorithms group
 
-.. versionadded:: 3.4
-
 .. warning::
 
    Not part of stable API and may change in future QGIS releases.
+
+.. versionadded:: 3.4
 %End
 
 %TypeHeaderCode
@@ -127,11 +127,11 @@ class QgsProcessingToolboxModelProviderNode : QgsProcessingToolboxModelNode
 %Docstring
 Processing toolbox model node corresponding to a Processing provider.
 
-.. versionadded:: 3.4
-
 .. warning::
 
    Not part of stable API and may change in future QGIS releases.
+
+.. versionadded:: 3.4
 %End
 
 %TypeHeaderCode
@@ -164,11 +164,11 @@ class QgsProcessingToolboxModelGroupNode : QgsProcessingToolboxModelNode
 %Docstring
 Processing toolbox model node corresponding to a group of algorithms.
 
-.. versionadded:: 3.4
-
 .. warning::
 
    Not part of stable API and may change in future QGIS releases.
+
+.. versionadded:: 3.4
 %End
 
 %TypeHeaderCode
@@ -204,11 +204,11 @@ class QgsProcessingToolboxModelAlgorithmNode : QgsProcessingToolboxModelNode
 %Docstring
 Processing toolbox model node corresponding to an algorithm.
 
-.. versionadded:: 3.4
-
 .. warning::
 
    Not part of stable API and may change in future QGIS releases.
+
+.. versionadded:: 3.4
 %End
 
 %TypeHeaderCode
@@ -394,7 +394,7 @@ from the given registry. If no registry is specified, then the processing
 registry attached to QgsApplication.processingRegistry() will be used
 by the model.
 
-If \recentLog is specified then it will be used to create a "Recently used" top
+If ``recentLog`` is specified then it will be used to create a "Recently used" top
 level group containing recently used algorithms.
 %End
 
diff --git a/python/gui/auto_generated/processing/qgsprocessingtoolboxtreeview.sip.in b/python/gui/auto_generated/processing/qgsprocessingtoolboxtreeview.sip.in
index 53ec8fb1372..880e20555ae 100644
--- a/python/gui/auto_generated/processing/qgsprocessingtoolboxtreeview.sip.in
+++ b/python/gui/auto_generated/processing/qgsprocessingtoolboxtreeview.sip.in
@@ -15,11 +15,11 @@ class QgsProcessingToolboxTreeView : QTreeView
 %Docstring
 Processing toolbox tree view, showing algorithms and providers in a tree structure.
 
-.. versionadded:: 3.4
-
 .. warning::
 
    Not part of stable API and may change in future QGIS releases.
+
+.. versionadded:: 3.4
 %End
 
 %TypeHeaderCode
diff --git a/src/gui/processing/qgsprocessingtoolboxmodel.cpp b/src/gui/processing/qgsprocessingtoolboxmodel.cpp
index 1f307feae96..b8018dc3cdc 100644
--- a/src/gui/processing/qgsprocessingtoolboxmodel.cpp
+++ b/src/gui/processing/qgsprocessingtoolboxmodel.cpp
@@ -23,6 +23,8 @@
 #include "modeltest.h"
 #endif
 
+///@cond PRIVATE
+
 //
 // QgsProcessingToolboxModelNode
 //
@@ -104,6 +106,8 @@ const QgsProcessingAlgorithm *QgsProcessingToolboxModelAlgorithmNode::algorithm(
   return mAlgorithm;
 }
 
+///@endcond
+
 //
 // QgsProcessingToolboxModel
 //
diff --git a/src/gui/processing/qgsprocessingtoolboxmodel.h b/src/gui/processing/qgsprocessingtoolboxmodel.h
index 1ac401772f2..d688903b0a1 100644
--- a/src/gui/processing/qgsprocessingtoolboxmodel.h
+++ b/src/gui/processing/qgsprocessingtoolboxmodel.h
@@ -129,8 +129,8 @@ class GUI_EXPORT QgsProcessingToolboxModelNode : public QObject
 /**
  * Processing toolbox model node corresponding to the recent algorithms group
  * \ingroup gui
- * \since QGIS 3.4
  * \warning Not part of stable API and may change in future QGIS releases.
+ * \since QGIS 3.4
  */
 class GUI_EXPORT QgsProcessingToolboxModelRecentNode : public QgsProcessingToolboxModelNode
 {
@@ -150,8 +150,8 @@ class GUI_EXPORT QgsProcessingToolboxModelRecentNode : public QgsProcessingToolb
 /**
  * Processing toolbox model node corresponding to a Processing provider.
  * \ingroup gui
- * \since QGIS 3.4
  * \warning Not part of stable API and may change in future QGIS releases.
+ * \since QGIS 3.4
  */
 class GUI_EXPORT QgsProcessingToolboxModelProviderNode : public QgsProcessingToolboxModelNode
 {
@@ -187,8 +187,8 @@ class GUI_EXPORT QgsProcessingToolboxModelProviderNode : public QgsProcessingToo
 /**
  * Processing toolbox model node corresponding to a group of algorithms.
  * \ingroup gui
- * \since QGIS 3.4
  * \warning Not part of stable API and may change in future QGIS releases.
+ * \since QGIS 3.4
  */
 class GUI_EXPORT QgsProcessingToolboxModelGroupNode : public QgsProcessingToolboxModelNode
 {
@@ -226,8 +226,8 @@ class GUI_EXPORT QgsProcessingToolboxModelGroupNode : public QgsProcessingToolbo
 /**
  * Processing toolbox model node corresponding to an algorithm.
  * \ingroup gui
- * \since QGIS 3.4
  * \warning Not part of stable API and may change in future QGIS releases.
+ * \since QGIS 3.4
  */
 class GUI_EXPORT QgsProcessingToolboxModelAlgorithmNode : public QgsProcessingToolboxModelNode
 {
@@ -413,6 +413,7 @@ class GUI_EXPORT QgsProcessingToolboxProxyModel: public QSortFilterProxyModel
 
   public:
 
+    //! Available filter flags for filtering the model
     enum Filter
     {
       FilterToolbox = 1 << 1, //!< Filters out any algorithms and content which should not be shown in the toolbox
@@ -429,7 +430,7 @@ class GUI_EXPORT QgsProcessingToolboxProxyModel: public QSortFilterProxyModel
      * registry attached to QgsApplication::processingRegistry() will be used
      * by the model.
      *
-     * If \recentLog is specified then it will be used to create a "Recently used" top
+     * If \a recentLog is specified then it will be used to create a "Recently used" top
      * level group containing recently used algorithms.
      */
     explicit QgsProcessingToolboxProxyModel( QObject *parent SIP_TRANSFERTHIS = nullptr,
diff --git a/src/gui/processing/qgsprocessingtoolboxtreeview.cpp b/src/gui/processing/qgsprocessingtoolboxtreeview.cpp
index 54202c37e5e..b6a9aa1aa8f 100644
--- a/src/gui/processing/qgsprocessingtoolboxtreeview.cpp
+++ b/src/gui/processing/qgsprocessingtoolboxtreeview.cpp
@@ -16,6 +16,8 @@
 #include "qgsprocessingtoolboxtreeview.h"
 #include "qgsprocessingtoolboxmodel.h"
 
+///@cond PRIVATE
+
 QgsProcessingToolboxTreeView::QgsProcessingToolboxTreeView( QWidget *parent,
     QgsProcessingRegistry *registry,
     QgsProcessingRecentAlgorithmLog *recentLog )
@@ -107,3 +109,4 @@ QModelIndex QgsProcessingToolboxTreeView::findFirstVisibleAlgorithm( const QMode
   return QModelIndex();
 }
 
+///@endcond
diff --git a/src/gui/processing/qgsprocessingtoolboxtreeview.h b/src/gui/processing/qgsprocessingtoolboxtreeview.h
index bf6e24ee696..bd79bf52dc6 100644
--- a/src/gui/processing/qgsprocessingtoolboxtreeview.h
+++ b/src/gui/processing/qgsprocessingtoolboxtreeview.h
@@ -30,8 +30,8 @@ class QgsProcessingAlgorithm;
 /**
  * Processing toolbox tree view, showing algorithms and providers in a tree structure.
  * \ingroup gui
- * \since QGIS 3.4
  * \warning Not part of stable API and may change in future QGIS releases.
+ * \since QGIS 3.4
  */
 class GUI_EXPORT QgsProcessingToolboxTreeView : public QTreeView
 {
@@ -105,4 +105,5 @@ class GUI_EXPORT QgsProcessingToolboxTreeView : public QTreeView
 
 };
 
+///@endcond
 #endif // QGSPROCESSINGTOOLBOXTREEVIEW_H