diff --git a/studio/router.go b/studio/router.go
index 1eab4765..b0dc126b 100644
--- a/studio/router.go
+++ b/studio/router.go
@@ -214,6 +214,7 @@ func setRouter(router *gin.Engine) {
 			throw(c, 500, err.Error())
 			return
 		}
+		defer ctx.Close()
 
 		res, err := ctx.Call(fun.Method, fun.Args...)