diff --git a/mitmproxy/addonmanager.py b/mitmproxy/addonmanager.py
index b3a71f1b4..1fc8e4dcb 100644
--- a/mitmproxy/addonmanager.py
+++ b/mitmproxy/addonmanager.py
@@ -1,3 +1,5 @@
+import typing
+
 from mitmproxy import exceptions
 from mitmproxy import eventsequence
 from mitmproxy import controller
@@ -9,6 +11,30 @@ def _get_name(itm):
     return getattr(itm, "name", itm.__class__.__name__.lower())
 
 
+class Loader:
+    """
+        A loader object is passed to the load() event when addons start up.
+    """
+    def __init__(self, master):
+        self.master = master
+
+    def add_option(
+        self,
+        name: str,
+        typespec: type,
+        default: typing.Any,
+        help: str,
+        choices: typing.Optional[typing.Sequence[str]] = None
+    ) -> None:
+        self.master.options.add_option(
+            name,
+            typespec,
+            default,
+            help,
+            choices
+        )
+
+
 class AddonManager:
     def __init__(self, master):
         self.chain = []
@@ -41,8 +67,9 @@ class AddonManager:
         """
         self.chain.extend(addons)
         with self.master.handlecontext():
+            l = Loader(self.master)
             for i in addons:
-                self.invoke_addon(i, "load", self.master.options)
+                self.invoke_addon(i, "load", l)
 
     def remove(self, addon):
         """
diff --git a/mitmproxy/addons/script.py b/mitmproxy/addons/script.py
index cb98704a0..ca1085d09 100644
--- a/mitmproxy/addons/script.py
+++ b/mitmproxy/addons/script.py
@@ -6,6 +6,7 @@ import threading
 import traceback
 import types
 
+from mitmproxy import addonmanager
 from mitmproxy import exceptions
 from mitmproxy import ctx
 from mitmproxy import eventsequence
@@ -184,10 +185,11 @@ class Script:
 
     def load_script(self):
         self.ns = load_script(self.path, self.args)
-        ret = self.run("load", self.last_options)
+        l = addonmanager.Loader(ctx.master)
+        ret = self.run("load", l)
         if ret:
             self.ns = ret
-            self.run("load", self.last_options)
+            self.run("load", l)
 
     def tick(self):
         if self.should_reload.is_set():