diff --git a/tests/signal_test.cpp b/tests/signal_test.cpp
index 3bc3135..eec56dc 100644
--- a/tests/signal_test.cpp
+++ b/tests/signal_test.cpp
@@ -24,9 +24,12 @@
 #include <thread>
 
 #include <android-base/macros.h>
+#include <android-base/threads.h>
+
 #include <gtest/gtest.h>
 
 #include "SignalUtils.h"
+#include "utils.h"
 
 using namespace std::chrono_literals;
 
@@ -174,10 +177,10 @@
   sigemptyset64(&wait_set);
   sigaddset64(&wait_set, SIGRTMIN);
 
-  pid_t pid = getpid();
-  std::thread thread([&pid]() {
+  pid_t tid = gettid();
+  std::thread thread([&tid]() {
     sleep(1);
-    kill(pid, SIGRTMIN);
+    tgkill(getpid(), tid, SIGRTMIN);
   });
 
   int received_signal;