diff --git a/src/DockAreaTabBar.cpp b/src/DockAreaTabBar.cpp
index 6b1739d..e461d04 100644
--- a/src/DockAreaTabBar.cpp
+++ b/src/DockAreaTabBar.cpp
@@ -300,7 +300,7 @@ int CDockAreaTabBar::currentIndex() const
 //===========================================================================
 CDockWidgetTab* CDockAreaTabBar::currentTab() const
 {
-	if (d->CurrentIndex < 0)
+	if (d->CurrentIndex < 0 || d->CurrentIndex >= d->TabsLayout->count())
 	{
 		return nullptr;
 	}