diff --git a/LibOS/shim/src/ipc/shim_ipc_pid.c b/LibOS/shim/src/ipc/shim_ipc_pid.c
index 874fe055..c8532cc1 100644
--- a/LibOS/shim/src/ipc/shim_ipc_pid.c
+++ b/LibOS/shim/src/ipc/shim_ipc_pid.c
@@ -118,7 +118,7 @@ int ipc_pid_kill_callback(struct shim_ipc_msg* msg, struct shim_ipc_port* port)
             break;
         case KILL_ALL:
             broadcast_ipc(msg, IPC_PORT_DIRCLD | IPC_PORT_DIRPRT, port);
-            ret = do_kill_proc(msgin->sender, msgin->id, msgin->signum, true);
+            ret = do_kill_proc(msgin->sender, msgin->id, msgin->signum, false);
             break;
     }
     return ret;
diff --git a/LibOS/shim/src/sys/shim_sigaction.c b/LibOS/shim/src/sys/shim_sigaction.c
index 8bf21917..592de060 100644
--- a/LibOS/shim/src/sys/shim_sigaction.c
+++ b/LibOS/shim/src/sys/shim_sigaction.c
@@ -376,7 +376,7 @@ int shim_do_kill(pid_t pid, int sig) {
         /* If `pid` equals -1, then signal is sent to every process for which the calling process
          * has permission to send, which means all processes in Graphene. */
         ipc_pid_kill_send(cur->tid, /*target=*/0, KILL_ALL, sig);
-        return do_kill_proc(cur->tid, cur->tgid, sig, true);
+        return do_kill_proc(cur->tid, cur->tgid, sig, false);
     } else if (pid == 0) {
         /* If `pid` equals 0, then signal is sent to every process in the process group of
          * the calling process. */