diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 0485bb5201e..b203b82899a 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -2651,7 +2651,7 @@ XLogFlush(XLogRecPtr record)
 
 			/*
 			 * Re-check how far we can now flush the WAL. It's generally not
-			 * safe to call WaitXLogInsetionsToFinish while holding
+			 * safe to call WaitXLogInsertionsToFinish while holding
 			 * WALWriteLock, because an in-progress insertion might need to
 			 * also grab WALWriteLock to make progress. But we know that all
 			 * the insertions up to insertpos have already finished, because