1 files changed, 1 insertions, 1 deletions

diff --git a/shell/ash.c b/shell/ash.c
index d0c0a510c..a31cee259 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -3654,7 +3654,7 @@ getjob(const char *name, int getctl)
 
         if (is_number(p)) {
                 num = atoi(p);
-                if (num <= njobs) {
+                if (num > 0 && num <= njobs) {
                         jp = jobtab + num - 1;
                         if (jp->used)
                                 goto gotit;