1 files changed, 3 insertions, 2 deletions

diff --git a/lib/libc/gen/devname.c b/lib/libc/gen/devname.c
index 65a690fcdcc3..da0b923573ad 100644
--- a/lib/libc/gen/devname.c
+++ b/lib/libc/gen/devname.c
@@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/sysctl.h>
 
 #include <stdio.h>
+#include <stdint.h>
 #include <string.h>
 #include <sys/param.h>
 #include <sys/stat.h>
@@ -60,8 +61,8 @@ devname_r(dev_t dev, mode_t type, char *buf, int len)
 	}
 
 	/* Finally just format it */
-	snprintf(buf, len, "#%c:%d:0x%x",
-	    S_ISCHR(type) ? 'C' : 'B', major(dev), minor(dev));
+	snprintf(buf, len, "#%c:%#jx",
+	    S_ISCHR(type) ? 'C' : 'B', (uintmax_t)dev);
 	return (buf);
 }