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-rw-r--r--src/core/service.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/core/service.c b/src/core/service.c
index 20990d2a19..dadd98123c 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1865,7 +1865,7 @@ static int main_pid_good(Service *s) {
/* If it's an alien child let's check if it is still
* alive ... */
- if (s->main_pid_alien)
+ if (s->main_pid_alien && s->main_pid > 0)
return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
/* .. otherwise assume we'll get a SIGCHLD for it,