diff --git a/common/config/key.go b/common/config/key.go
deleted file mode 100644
index da182b37..00000000
--- a/common/config/key.go
+++ /dev/null
@@ -1,13 +0,0 @@
-package config
-
-const (
-	KeyPrefix = "cfg_"
-
-	KeyAPIVersion = KeyPrefix + "api_version"
-	KeyLibraryID  = KeyPrefix + "library_id"
-	KeyPlugin     = KeyPrefix + "plugin"
-	KeySK         = KeyPrefix + "sk"
-	KeyAK         = KeyPrefix + "ak"
-	KeyRegion     = KeyPrefix + "region"
-	KeyUserID     = KeyPrefix + "user_id"
-)
diff --git a/common/ctxkey/config.go b/common/ctxkey/config.go
new file mode 100644
index 00000000..69e8a27a
--- /dev/null
+++ b/common/ctxkey/config.go
@@ -0,0 +1,13 @@
+package ctxkey
+
+const (
+	ConfigPrefix = "cfg_"
+
+	ConfigAPIVersion = ConfigPrefix + "api_version"
+	ConfigLibraryID  = ConfigPrefix + "library_id"
+	ConfigPlugin     = ConfigPrefix + "plugin"
+	ConfigSK         = ConfigPrefix + "sk"
+	ConfigAK         = ConfigPrefix + "ak"
+	ConfigRegion     = ConfigPrefix + "region"
+	ConfigUserID     = ConfigPrefix + "user_id"
+)