diff --git a/mxqd_control.c b/mxqd_control.c
index 47903673..d51ffebc 100644
--- a/mxqd_control.c
+++ b/mxqd_control.c
@@ -206,7 +206,7 @@ struct mxq_job_list *server_get_job_list_by_pid(struct mxq_server *server, pid_t
         for (glist = ulist->groups; glist; glist = glist->next) {
             for (jlist = glist->jobs; jlist; jlist = jlist->next) {
                 job = &jlist->job;
-                if (job->host_pid == pid)
+                if (job->host_pid == (unsigned)pid)
                     return jlist;
             }
         }