diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index d4f338a6c0e..150534b847f 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -7401,7 +7401,7 @@ CreateOverwriteContrecordRecord(XLogRecPtr aborted_lsn, XLogRecPtr pagePtr,
 }
 
 static void
-CheckPointReplicationState()
+CheckPointReplicationState(void)
 {
 	CheckPointRelationMap();
 	CheckPointReplicationSlots();