1 files changed, 1 insertions, 1 deletions

diff --git a/libbb/procps.c b/libbb/procps.c
index 053f7d225..946f569f5 100644
--- a/libbb/procps.c
+++ b/libbb/procps.c
@@ -184,7 +184,7 @@ procps_status_t* procps_scan(procps_status_t* sp, int flags)
 
                         sp->tty_str[0] = '?';
                         /* sp->tty_str[1] = '\0'; - done by memset */
-                        if (tty >= 0) /* tty field of "-1" means "no tty" */
+                        if (tty) /* tty field of "0" means "no tty" */
                                 snprintf(sp->tty_str, sizeof(sp->tty_str), "%u,%u",
                                         (tty >> 8) & 0xfff, /* major */
                                         (tty & 0xff) | ((tty >> 12) & 0xfff00));