diff --git a/tests/signal_test.cpp b/tests/signal_test.cpp
index 6db7751..3bc3135 100644
--- a/tests/signal_test.cpp
+++ b/tests/signal_test.cpp
@@ -176,7 +176,7 @@
 
   pid_t pid = getpid();
   std::thread thread([&pid]() {
-    usleep(5000);
+    sleep(1);
     kill(pid, SIGRTMIN);
   });