diff --git a/modules/lastfm.py b/modules/lastfm.py
index 56da9b29..e8a2545e 100644
--- a/modules/lastfm.py
+++ b/modules/lastfm.py
@@ -9,7 +9,7 @@ class Module(object):
         self.bot = bot
 
         bot.events.on("postboot").on("configure").on(
-            "set").call(setting="lastfm",
+            "set").assure_call(setting="lastfm",
             help="Set username on last.fm")
 
         bot.events.on("received").on("command").on("np",
diff --git a/modules/trakt.py b/modules/trakt.py
index 39a039c3..b3c36d3d 100644
--- a/modules/trakt.py
+++ b/modules/trakt.py
@@ -14,7 +14,7 @@ class Module(object):
             "on trakt.tv", usage="[username]")
 
         bot.events.on("postboot").on("configure").on("set"
-            ).call(setting="trakt", help="Set username on trakt.tv")
+            ).assure_call(setting="trakt", help="Set username on trakt.tv")
 
     def now_watching(self, event):
         if event["args"]: