diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index e3d78864e6f..c373e7c6f27 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -7091,6 +7091,20 @@ void QWidget::setTabOrder(QWidget* first, QWidget *second)
     }
 }
 
+void QWidget::setTabOrder(std::initializer_list<QWidget *> widgets)
+{
+    QWidget *prev = nullptr;
+    for (const auto &widget : widgets) {
+        if (!prev) {
+            prev = widget;
+        } else {
+            QWidget::setTabOrder(prev, widget);
+            prev = widget;
+        }
+    }
+}
+
+
 /*!\internal
 
   Moves the relevant subwidgets of this widget from the \a oldtlw's
diff --git a/src/widgets/kernel/qwidget.h b/src/widgets/kernel/qwidget.h
index 4591ab04540..e5e83a43f2e 100644
--- a/src/widgets/kernel/qwidget.h
+++ b/src/widgets/kernel/qwidget.h
@@ -432,7 +432,7 @@ public:
     void setFocusPolicy(Qt::FocusPolicy policy);
     bool hasFocus() const;
     static void setTabOrder(QWidget *, QWidget *);
-    static inline void setTabOrder(std::initializer_list<QWidget *> widgets);
+    static void setTabOrder(std::initializer_list<QWidget *> widgets);
     void setFocusProxy(QWidget *);
     QWidget *focusProxy() const;
     Qt::ContextMenuPolicy contextMenuPolicy() const;
@@ -914,19 +914,6 @@ inline bool QWidget::testAttribute(Qt::WidgetAttribute attribute) const
     return testAttribute_helper(attribute);
 }
 
-inline void QWidget::setTabOrder(std::initializer_list<QWidget *> widgets)
-{
-    QWidget *prev = nullptr;
-    for (const auto &widget : widgets) {
-        if (!prev) {
-            prev = widget;
-        } else {
-            QWidget::setTabOrder(prev, widget);
-            prev = widget;
-        }
-    }
-}
-
 #define QWIDGETSIZE_MAX ((1<<24)-1)
 
 #ifndef QT_NO_DEBUG_STREAM