diff --git a/src/backend/storage/ipc/pmsignal.c b/src/backend/storage/ipc/pmsignal.c
index 85db6b2..7a76687 100644
--- a/src/backend/storage/ipc/pmsignal.c
+++ b/src/backend/storage/ipc/pmsignal.c
@@ -272,6 +272,13 @@ bool
 PostmasterIsAlive(void)
 {
 #ifndef WIN32
+
+	if (getppid() != PostmasterPid)
+		return false;
+	else
+		return true;
+
+/*
 	char		c;
 	ssize_t		rc;
 
@@ -287,6 +294,7 @@ PostmasterIsAlive(void)
 		elog(FATAL, "unexpected data in postmaster death monitoring pipe");
 
 	return false;
+*/
 #else							/* WIN32 */
 	return (WaitForSingleObject(PostmasterHandle, 0) == WAIT_TIMEOUT);
 #endif							/* WIN32 */