diff --git a/hw/xwin/winmonitors.c b/hw/xwin/winmonitors.c
index 76063d300..955fb9214 100644
--- a/hw/xwin/winmonitors.c
+++ b/hw/xwin/winmonitors.c
@@ -59,13 +59,13 @@ getMonitorInfo(HMONITOR hMonitor, HDC hdc, LPRECT rect, LPARAM _data)
 }
 
 Bool
-QueryMonitor(int index, struct GetMonitorInfoData *data)
+QueryMonitor(int i, struct GetMonitorInfoData *data)
 {
     /* prepare data */
     if (data == NULL)
         return FALSE;
     memset(data, 0, sizeof(*data));
-    data->requestedMonitor = index;
+    data->requestedMonitor = i;
 
     /* query information */
     EnumDisplayMonitors(NULL, NULL, getMonitorInfo, (LPARAM) data);