diff --git a/src/backend/postmaster/walsummarizer.c b/src/backend/postmaster/walsummarizer.c
index 2d8f57099fd..742137edad6 100644
--- a/src/backend/postmaster/walsummarizer.c
+++ b/src/backend/postmaster/walsummarizer.c
@@ -241,12 +241,9 @@ WalSummarizerMain(const void *startup_data, size_t startup_data_len)
 
 	/*
 	 * Properly accept or ignore signals the postmaster might send us
-	 *
-	 * We have no particular use for SIGINT at the moment, but seems
-	 * reasonable to treat like SIGTERM.
 	 */
 	pqsignal(SIGHUP, SignalHandlerForConfigReload);
-	pqsignal(SIGINT, SignalHandlerForShutdownRequest);
+	pqsignal(SIGINT, SIG_IGN);	/* no query to cancel */
 	pqsignal(SIGTERM, SignalHandlerForShutdownRequest);
 	/* SIGQUIT handler was already set up by InitPostmasterChild */
 	pqsignal(SIGALRM, SIG_IGN);
diff --git a/src/backend/postmaster/walwriter.c b/src/backend/postmaster/walwriter.c
index 23e79a32345..7c0e2809c17 100644
--- a/src/backend/postmaster/walwriter.c
+++ b/src/backend/postmaster/walwriter.c
@@ -98,12 +98,9 @@ WalWriterMain(const void *startup_data, size_t startup_data_len)
 
 	/*
 	 * Properly accept or ignore signals the postmaster might send us
-	 *
-	 * We have no particular use for SIGINT at the moment, but seems
-	 * reasonable to treat like SIGTERM.
 	 */
 	pqsignal(SIGHUP, SignalHandlerForConfigReload);
-	pqsignal(SIGINT, SignalHandlerForShutdownRequest);
+	pqsignal(SIGINT, SIG_IGN);	/* no query to cancel */
 	pqsignal(SIGTERM, SignalHandlerForShutdownRequest);
 	/* SIGQUIT handler was already set up by InitPostmasterChild */
 	pqsignal(SIGALRM, SIG_IGN);