diff --git a/android/src/main/java/io/sentry/RNSentryModule.java b/android/src/main/java/io/sentry/RNSentryModule.java
index fa2ce8b3b6..d153e99814 100644
--- a/android/src/main/java/io/sentry/RNSentryModule.java
+++ b/android/src/main/java/io/sentry/RNSentryModule.java
@@ -259,7 +259,7 @@ public void captureEvent(ReadableMap event) {
             ReadableNativeMap exception = exceptionValues.getMap(0);
             ReadableNativeMap stacktrace = exception.getMap("stacktrace");
             if (exception.hasKey("value")) {
-                addExceptionInterface(eventBuilder, exception.getString("type"), exception.getString("value"), stacktrace.getArray("frames"));
+                addExceptionInterface(eventBuilder, exception.getString("type"), exception.getString("value"), (ReadableNativeArray) stacktrace.getArray("frames"));
             } else {
                 // We use type/type here since this indicates an Unhandled Promise Rejection
                 // https://github.com/getsentry/react-native-sentry/issues/353
diff --git a/lib/Sentry.js b/lib/Sentry.js
index a72aeae0ea..6d4fba85e4 100644
--- a/lib/Sentry.js
+++ b/lib/Sentry.js
@@ -21,7 +21,7 @@ export const SentryLog = {
 };
 
 export const Sentry = {
-  install() {
+  async install() {
     // We have to first setup raven otherwise react-native will freeze the options
     // and some properties like ignoreErrors can not be mutated by raven-js
     Sentry._ravenClient = new RavenClient(Sentry._dsn, Sentry.options);
@@ -31,6 +31,7 @@ export const Sentry = {
       Sentry.options.disableNativeIntegration === false
     ) {
       Sentry._nativeClient = new NativeClient(Sentry._dsn, Sentry.options);
+      await Sentry._nativeClient.customInit();
       Sentry.eventEmitter = new NativeEventEmitter(RNSentryEventEmitter);
       Sentry.eventEmitter.addListener(
         RNSentryEventEmitter.EVENT_SENT_SUCCESSFULLY,