diff --git a/config/raw_config.go b/config/raw_config.go
index a238e99a2..d51578e0b 100644
--- a/config/raw_config.go
+++ b/config/raw_config.go
@@ -58,6 +58,7 @@ func (r *RawConfig) Copy() *RawConfig {
 		panic("copy failed: " + err.Error())
 	}
 
+	result.Key = r.Key
 	return result
 }