diff --git a/src/win/win_settings.c b/src/win/win_settings.c
index 69f054acd..264b5338f 100644
--- a/src/win/win_settings.c
+++ b/src/win/win_settings.c
@@ -2789,7 +2789,7 @@ win_settings_hard_disks_add_proc(HWND hdlg, UINT message, WPARAM wParam, LPARAM
 					if (r) {
 						for (i = 0; i < r; i++) {
 							fwrite(big_buf, 1, 1048576, f);
-							SendMessage(h, PBM_SETPOS, (WPARAM) (size + 1), (LPARAM) 0);
+							SendMessage(h, PBM_SETPOS, (WPARAM) (i + 1), (LPARAM) 0);
 
 							while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD)) {
 								TranslateMessage(&msg);