diff --git a/ext/pcntl/tests/async_signals.phpt b/ext/pcntl/tests/async_signals.phpt
index e9c1c96d4ea..dd0f602c25b 100644
--- a/ext/pcntl/tests/async_signals.phpt
+++ b/ext/pcntl/tests/async_signals.phpt
@@ -5,7 +5,7 @@ pcntl
 posix
 --FILE--
 <?php
-pcntl_async_signals(1);
+pcntl_async_signals(true);
 
 pcntl_signal(SIGTERM, function ($signo) { echo "Signal handler called!\n"; });
 
diff --git a/ext/pcntl/tests/async_signals_2.phpt b/ext/pcntl/tests/async_signals_2.phpt
index f5812443748..95a5a219768 100644
--- a/ext/pcntl/tests/async_signals_2.phpt
+++ b/ext/pcntl/tests/async_signals_2.phpt
@@ -9,7 +9,7 @@ if (getenv("SKIP_SLOW_TESTS")) die("skip slow test");
 --FILE--
 <?php
 
-pcntl_async_signals(1);
+pcntl_async_signals(true);
 pcntl_signal(SIGALRM, function($signo) {
     throw new Exception("Alarm!");
 });