diff --git a/sdk/android/src/jni/video_frame.cc b/sdk/android/src/jni/video_frame.cc
index dd3562f540..98728032e8 100644
--- a/sdk/android/src/jni/video_frame.cc
+++ b/sdk/android/src/jni/video_frame.cc
@@ -179,6 +179,10 @@ rtc::scoped_refptr<I420BufferInterface> AndroidVideoBuffer::ToI420() {
   JNIEnv* jni = AttachCurrentThreadIfNeeded();
   ScopedJavaLocalRef<jobject> j_i420_buffer =
       Java_Buffer_toI420(jni, j_video_frame_buffer_);
+  // In case I420 conversion fails, we propagate the nullptr.
+  if (j_i420_buffer.is_null()) {
+    return nullptr;
+  }
 
   // We don't need to retain the buffer because toI420 returns a new object that
   // we are assumed to take the ownership of.