diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 2c39124..ee8f56e 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -114,7 +114,7 @@
         }
     }
 
-    optind = 0;
+    qemu_reset_optind();
     return ct->cfunc(blk, argc, argv);
 }