diff --git a/modules/juce_gui_basics/native/x11/juce_linux_XWindowSystem.cpp b/modules/juce_gui_basics/native/x11/juce_linux_XWindowSystem.cpp
index 087f881b9a..5ef06a28d0 100644
--- a/modules/juce_gui_basics/native/x11/juce_linux_XWindowSystem.cpp
+++ b/modules/juce_gui_basics/native/x11/juce_linux_XWindowSystem.cpp
@@ -1747,17 +1747,17 @@ void XWindowSystem::setBounds (::Window windowH, Rectangle<int> newBounds, bool
             X11Symbols::getInstance()->xSetWMNormalHints (display, windowH, hints.get());
         }
 
-        const auto windowBorder = [&]() -> BorderSize<int>
+        const auto nativeWindowBorder = [&]() -> BorderSize<int>
         {
             if (const auto& frameSize = peer->getFrameSizeIfPresent())
-                return *frameSize;
+                return frameSize->multipliedBy (peer->getPlatformScaleFactor());
 
             return {};
         }();
 
         X11Symbols::getInstance()->xMoveResizeWindow (display, windowH,
-                                                      newBounds.getX() - windowBorder.getLeft(),
-                                                      newBounds.getY() - windowBorder.getTop(),
+                                                      newBounds.getX() - nativeWindowBorder.getLeft(),
+                                                      newBounds.getY() - nativeWindowBorder.getTop(),
                                                       (unsigned int) newBounds.getWidth(),
                                                       (unsigned int) newBounds.getHeight());
     }