diff --git a/include/wx/richtext/richtextbuffer.h b/include/wx/richtext/richtextbuffer.h
index a763461545..4c80c1e497 100644
--- a/include/wx/richtext/richtextbuffer.h
+++ b/include/wx/richtext/richtextbuffer.h
@@ -5689,11 +5689,21 @@ public:
     */
     int GetRowCount() const { return m_rowCount; }
 
+    /**
+        Sets the row count.
+    */
+    void SetRowCount(int count) { m_rowCount = count; }
+
     /**
         Returns the column count.
     */
     int GetColumnCount() const { return m_colCount; }
 
+    /**
+        Sets the column count.
+    */
+    void SetColumnCount(int count) { m_colCount = count; }
+
     /**
         Returns the cell at the given row/column position.
     */