diff --git a/lcl/interfaces/qt/qtwinapi.inc b/lcl/interfaces/qt/qtwinapi.inc
index 1b61d18b92..d2772db02e 100644
--- a/lcl/interfaces/qt/qtwinapi.inc
+++ b/lcl/interfaces/qt/qtwinapi.inc
@@ -6079,7 +6079,8 @@ var
       // ScrollBar.setSliderPosition(ScrollInfo.nTrackPos);
     end;
 
-    Result := ScrollBar.getValue;
+    Result := ScrollBar.getSliderPosition;
+
   end;
 
 begin