diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c
index 302c331c49..ac658dcb24 100644
--- a/src/backend/postmaster/pgstat.c
+++ b/src/backend/postmaster/pgstat.c
@@ -3745,7 +3745,7 @@ pgstat_get_wait_io(WaitEventIO w)
 			event_name = "LockFileCreateSync";
 			break;
 		case WAIT_EVENT_LOCK_FILE_CREATE_WRITE:
-			event_name = "LockFileCreateWRITE";
+			event_name = "LockFileCreateWrite";
 			break;
 		case WAIT_EVENT_LOCK_FILE_RECHECKDATADIR_READ:
 			event_name = "LockFileReCheckDataDirRead";