1 files changed, 1 insertions, 1 deletions

diff --git a/util-linux/blockdev.c b/util-linux/blockdev.c
index 9b5d86d00..a780d2238 100644
--- a/util-linux/blockdev.c
+++ b/util-linux/blockdev.c
@@ -142,7 +142,7 @@ int blockdev_main(int argc, char **argv)
         lu = llu;
         iarg = llu;
 
-        if (!*++argv)
+        if (!*++argv || argv[1])
                 bb_show_usage();
         fd = xopen(*argv, O_RDONLY);