diff --git a/plugins/mod_storage_sql.lua b/plugins/mod_storage_sql.lua
index 395e937de..5f02aa06a 100644
--- a/plugins/mod_storage_sql.lua
+++ b/plugins/mod_storage_sql.lua
@@ -142,7 +142,7 @@ function keyval_store:users()
 		]];
 		return engine:select(select_sql, host, self.store);
 	end);
-	if not ok then return ok, result end
+	if not ok then error(result); end
 	return iterator(result);
 end