diff --git a/package/android/src/main/java/com/mrousavy/camera/utils/withPromise.kt b/package/android/src/main/java/com/mrousavy/camera/utils/withPromise.kt
index 7c107be..a3ba6e9 100644
--- a/package/android/src/main/java/com/mrousavy/camera/utils/withPromise.kt
+++ b/package/android/src/main/java/com/mrousavy/camera/utils/withPromise.kt
@@ -11,6 +11,6 @@ inline fun withPromise(promise: Promise, closure: () -> Any?) {
   } catch (e: Throwable) {
     e.printStackTrace()
     val error = if (e is CameraError) e else UnknownCameraError(e)
-    promise.reject("${error.domain}/${error.id}", error.message, error.cause)
+    promise.reject("${error.domain}/${error.id}", error.message ?: "Unknown error", error.cause)
   }
 }