diff --git a/pkgs/servers/sql/postgresql/ext/pg_textsearch.nix b/pkgs/servers/sql/postgresql/ext/pg_textsearch.nix
index 9b42b0b2c483..f2ca30780c03 100644
--- a/pkgs/servers/sql/postgresql/ext/pg_textsearch.nix
+++ b/pkgs/servers/sql/postgresql/ext/pg_textsearch.nix
@@ -31,10 +31,11 @@ postgresqlBuildExtension (finalAttrs: {
         ('PostgreSQL is a powerful, open source object-relational database system');
       CREATE INDEX documents_content_bm25_idx ON documents USING bm25(content) WITH (text_config='english');
     '';
+
     asserts = [
       {
-        query = "SELECT count(*) FROM documents ORDER BY content <@> 'nix' LIMIT 10";
-        expected = "2";
+        query = "SELECT content FROM documents ORDER BY content <@> 'NixOS' LIMIT 1";
+        expected = "'NixOS provides declarative configuration and reproducible system builds with the Nix package manager'";
         description = "BM25 index can be queried successfully.";
       }
     ];