diff --git a/android/src/main/java/expo/modules/superwallexpo/SuperwallExpoModule.kt b/android/src/main/java/expo/modules/superwallexpo/SuperwallExpoModule.kt
index 8abc585..ab0bf12 100644
--- a/android/src/main/java/expo/modules/superwallexpo/SuperwallExpoModule.kt
+++ b/android/src/main/java/expo/modules/superwallexpo/SuperwallExpoModule.kt
@@ -217,7 +217,7 @@ class SuperwallExpoModule : Module() {
 
       Superwall.instance.register(
         placement = placement,
-        params = params,
+        params = params?.let { HashMap(it) },
         handler = handler
       ) {
         promise.resolve(null)