diff --git a/spec/01-unit/03-conf_loader_spec.lua b/spec/01-unit/03-conf_loader_spec.lua
index a5f0d3f5b202..9827fcef10e2 100644
--- a/spec/01-unit/03-conf_loader_spec.lua
+++ b/spec/01-unit/03-conf_loader_spec.lua
@@ -2472,7 +2472,6 @@ describe("Configuration loader", function()
         -- CONF_BASIC
         prefix = true,
         socket_path = true,
-        socket_path = true,
         worker_events_sock = true,
         stream_worker_events_sock = true,
         stream_rpc_sock = true,