diff --git a/CHANGELOG.md b/CHANGELOG.md
index b21fa09b1b..63449cbc27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+### Fixes
+
+- ReactNativeTracingOptions maxTransactionDuration is in seconds ([#2469](https://github.com/getsentry/sentry-react-native/pull/2469))
+
 ## 4.3.0
 
 ### Features
diff --git a/src/js/tracing/reactnativetracing.ts b/src/js/tracing/reactnativetracing.ts
index 4b006c85b5..44dcb03043 100644
--- a/src/js/tracing/reactnativetracing.ts
+++ b/src/js/tracing/reactnativetracing.ts
@@ -361,7 +361,7 @@ export class ReactNativeTracing implements Integration {
       hub as Hub,
       expandedContext,
       idleTimeout,
-      maxTransactionDuration,
+      maxTransactionDuration * 1000, // convert seconds to milliseconds
       true
     );