1 files changed, 1 insertions, 1 deletions

diff --git a/libbb/device_open.c b/libbb/device_open.c
index 30b33d7f0..42da1e1be 100644
--- a/libbb/device_open.c
+++ b/libbb/device_open.c
@@ -25,7 +25,7 @@
 
 
 /* try to open up the specified device */
-extern int device_open(char *device, int mode)
+extern int device_open(const char *device, int mode)
 {
         int m, f, fd = -1;