diff --git a/app/src/main/java/org/autojs/autojs/runtime/api/augment/http/Http.kt b/app/src/main/java/org/autojs/autojs/runtime/api/augment/http/Http.kt
index da86c516..45fae7d6 100644
--- a/app/src/main/java/org/autojs/autojs/runtime/api/augment/http/Http.kt
+++ b/app/src/main/java/org/autojs/autojs/runtime/api/augment/http/Http.kt
@@ -289,7 +289,7 @@ class Http(scriptRuntime: ScriptRuntime) : Augmentable(scriptRuntime) {
         }
 
         private fun MutableOkHttp.applyOkHttpClientBuilder(opt: NativeObject) {
-            val clientProp = opt.prop(KEY_CLIENT)
+            val clientProp = opt.prop(KEY_CLIENT).takeUnless { it.isJsNullish() }
             require(clientProp is NativeObject?) { "Argument \"client\" ${clientProp.jsBrief()} for http.request must be a JavaScript Object" }
             clientProp ?: return