diff --git a/src/pg_tde.c b/src/pg_tde.c
index 1acf89fc86c..1d993ae2011 100644
--- a/src/pg_tde.c
+++ b/src/pg_tde.c
@@ -102,7 +102,8 @@ _PG_init(void)
 {
 	if (!process_shared_preload_libraries_in_progress)
 	{
-		elog(WARNING, "pg_tde can only be loaded at server startup. Restart required.");
+		elog(ERROR, "pg_tde can only be loaded at server startup. Restart required.");
+		return;
 	}
 
 #ifdef PERCONA_EXT