diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 0185881872..af57d77554 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -11223,7 +11223,7 @@ do_pg_abort_backup(int code, Datum arg)
 
 	if (emit_warning)
 		ereport(WARNING,
-				(errmsg("aborting backup due to backend exiting before pg_stop_back up was called")));
+				(errmsg("aborting backup due to backend exiting before pg_stop_backup was called")));
 }
 
 /*