diff --git a/lib/std/Progress.zig b/lib/std/Progress.zig
index ee41501bfc..b1f8dff1c1 100644
--- a/lib/std/Progress.zig
+++ b/lib/std/Progress.zig
@@ -214,8 +214,9 @@ fn refreshWithHeldLock(self: *Progress) void {
         const window_width = @intCast(windows.DWORD, info.srWindow.Right - info.srWindow.Left) + 1;
         // Number of terminal cells to clear, starting from the cursor position
         // and ending at the window bottom right corner.
-        const fill_chars = window_width * (window_width - @intCast(windows.DWORD, info.dwCursorPosition.Y - info.srWindow.Top)) -
-            @intCast(windows.DWORD, info.dwCursorPosition.Y - info.srWindow.Top);
+        const fill_chars = window_width * (window_height -
+            @intCast(windows.DWORD, info.dwCursorPosition.Y - info.srWindow.Top)) -
+            @intCast(windows.DWORD, info.dwCursorPosition.X - info.srWindow.Left);
 
         var written: windows.DWORD = undefined;
         if (windows.kernel32.FillConsoleOutputAttribute(