diff --git a/ext/standard/tests/general_functions/proc_open02.phpt b/ext/standard/tests/general_functions/proc_open02.phpt
index b086f6f6e1d..3cba15e9ad6 100644
--- a/ext/standard/tests/general_functions/proc_open02.phpt
+++ b/ext/standard/tests/general_functions/proc_open02.phpt
@@ -15,6 +15,8 @@ $cat = proc_open(
 	$pipes
 );
 
+sleep(1); // let the OS run the nohup process before sending the signal
+
 var_dump(proc_terminate($cat, 1)); // send a SIGHUP
 sleep(1);
 var_dump(proc_get_status($cat));