diff --git a/src/backend/postmaster/checkpointer.c b/src/backend/postmaster/checkpointer.c
index de0bbbfa79..e57be4f72b 100644
--- a/src/backend/postmaster/checkpointer.c
+++ b/src/backend/postmaster/checkpointer.c
@@ -543,6 +543,11 @@ CheckpointerMain(void)
 static void
 HandleCheckpointerInterrupts(void)
 {
+#ifdef WIN32
+	if (UNBLOCKED_SIGNAL_QUEUE())
+		pgwin32_dispatch_queued_signals();
+#endif
+
 	if (ProcSignalBarrierPending)
 		ProcessProcSignalBarrier();
 
diff --git a/src/backend/postmaster/pgarch.c b/src/backend/postmaster/pgarch.c
index 8ecdb9ca23..68184894fe 100644
--- a/src/backend/postmaster/pgarch.c
+++ b/src/backend/postmaster/pgarch.c
@@ -777,6 +777,11 @@ pgarch_die(int code, Datum arg)
 static void
 HandlePgArchInterrupts(void)
 {
+#ifdef WIN32
+	if (UNBLOCKED_SIGNAL_QUEUE())
+		pgwin32_dispatch_queued_signals();
+#endif
+
 	if (ProcSignalBarrierPending)
 		ProcessProcSignalBarrier();
 
diff --git a/src/backend/postmaster/startup.c b/src/backend/postmaster/startup.c
index 8786186898..0e8cb3a174 100644
--- a/src/backend/postmaster/startup.c
+++ b/src/backend/postmaster/startup.c
@@ -171,6 +171,11 @@ HandleStartupProcInterrupts(void)
 	static uint32 postmaster_poll_count = 0;
 #endif
 
+#ifdef WIN32
+	if (UNBLOCKED_SIGNAL_QUEUE())
+		pgwin32_dispatch_queued_signals();
+#endif
+
 	/*
 	 * Process any requests or signals received recently.
 	 */