diff --git a/dlls/user32/sysparams.c b/dlls/user32/sysparams.c
index c92d9af2aa9..149b483d156 100644
--- a/dlls/user32/sysparams.c
+++ b/dlls/user32/sysparams.c
@@ -3481,7 +3481,7 @@ static BOOL CALLBACK monitor_enum( HMONITOR monitor, HDC hdc, LPRECT rect, LPARA
 /***********************************************************************
  *		MonitorFromRect (USER32.@)
  */
-HMONITOR WINAPI MonitorFromRect( LPRECT rect, DWORD flags )
+HMONITOR WINAPI MonitorFromRect( const RECT *rect, DWORD flags )
 {
     struct monitor_enum_info info;
 
diff --git a/include/winuser.h b/include/winuser.h
index a653ef4ffe7..8489d0503f5 100644
--- a/include/winuser.h
+++ b/include/winuser.h
@@ -3981,7 +3981,7 @@ WINUSERAPI BOOL        WINAPI ModifyMenuA(HMENU,UINT,UINT,UINT_PTR,LPCSTR);
 WINUSERAPI BOOL        WINAPI ModifyMenuW(HMENU,UINT,UINT,UINT_PTR,LPCWSTR);
 #define                       ModifyMenu WINELIB_NAME_AW(ModifyMenu)
 WINUSERAPI HMONITOR    WINAPI MonitorFromPoint(POINT,DWORD);
-WINUSERAPI HMONITOR    WINAPI MonitorFromRect(LPRECT,DWORD);
+WINUSERAPI HMONITOR    WINAPI MonitorFromRect(const RECT*,DWORD);
 WINUSERAPI HMONITOR    WINAPI MonitorFromWindow(HWND,DWORD);
 WINUSERAPI BOOL        WINAPI MoveWindow(HWND,INT,INT,INT,INT,BOOL);
 WINUSERAPI DWORD       WINAPI MsgWaitForMultipleObjects(DWORD,const HANDLE*,BOOL,DWORD,DWORD);