diff --git a/modules/juce_audio_plugin_client/detail/juce_IncludeSystemHeaders.h b/modules/juce_audio_plugin_client/detail/juce_IncludeSystemHeaders.h
index 0b2feae295..aaf7ced27e 100644
--- a/modules/juce_audio_plugin_client/detail/juce_IncludeSystemHeaders.h
+++ b/modules/juce_audio_plugin_client/detail/juce_IncludeSystemHeaders.h
@@ -34,7 +34,7 @@
 
 #if JUCE_WINDOWS
  #undef _WIN32_WINNT
- #define _WIN32_WINNT 0x500
+ #define _WIN32_WINNT _WIN32_WINNT_WIN10
  #undef STRICT
  #define STRICT 1
  #include <windows.h>
diff --git a/modules/juce_gui_basics/native/juce_Windowing_windows.cpp b/modules/juce_gui_basics/native/juce_Windowing_windows.cpp
index 4b7e90146d..45dfef7a15 100644
--- a/modules/juce_gui_basics/native/juce_Windowing_windows.cpp
+++ b/modules/juce_gui_basics/native/juce_Windowing_windows.cpp
@@ -3981,7 +3981,8 @@ private:
 
                 return handlePositionChanging (*(WINDOWPOS*) lParam);
 
-            case 0x2e0: /* WM_DPICHANGED */  return handleDPIChanging ((int) HIWORD (wParam), *(RECT*) lParam);
+            case WM_DPICHANGED:
+                return handleDPIChanging ((int) HIWORD (wParam), *(RECT*) lParam);
 
             case WM_WINDOWPOSCHANGED:
             {