1 files changed, 1 insertions, 1 deletions
diff --git a/daemon/zero.c b/daemon/zero.c
index 864e9a66..ce45ae23 100644
--- a/daemon/zero.c
+++ b/daemon/zero.c
@@ -28,7 +28,7 @@
 #include "actions.h"
 
 int
-do_zero (char *device)
+do_zero (const char *device)
 {
   int fd, i;
   char buf[4096];