diff --git a/monitor.c b/monitor.c
index aac8878..4b270d9 100644
--- a/monitor.c
+++ b/monitor.c
@@ -259,7 +259,7 @@
     all_devices = !strcmp(device, "all");
     TAILQ_FOREACH(dinfo, &drives, next) {
         if (!all_devices)
-            if (!strcmp(bdrv_get_device_name(dinfo->bdrv), device))
+            if (strcmp(bdrv_get_device_name(dinfo->bdrv), device))
                 continue;
         bdrv_commit(dinfo->bdrv);
     }