1 files changed, 2 insertions, 2 deletions
diff --git a/src/widgets/itemviews/qtreeview.cpp b/src/widgets/itemviews/qtreeview.cpp
index 4d0eb5c3ad..5d0e835b0e 100644
--- a/src/widgets/itemviews/qtreeview.cpp
+++ b/src/widgets/itemviews/qtreeview.cpp
@@ -3685,7 +3685,7 @@ void QTreeViewPrivate::updateScrollBars()
         }
         vbar->setRange(0, contentsHeight - viewportSize.height());
         vbar->setPageStep(viewportSize.height());
-        // here we do not want to overwrite (a possible user set) single step
+        vbar->setSingleStep(qMax(viewportSize.height() / (itemsInViewport + 1), 2));
     }
 
     const int columnCount = header->count();
@@ -3711,7 +3711,7 @@ void QTreeViewPrivate::updateScrollBars()
             viewportSize = maxSize;
         hbar->setPageStep(viewportSize.width());
         hbar->setRange(0, qMax(horizontalLength - viewportSize.width(), 0));
-        // here we do not want to overwrite (a possible user set) single step
+        hbar->setSingleStep(qMax(viewportSize.width() / (columnsInViewport + 1), 2));
     }
 }