diff --git a/starboard/xb1/shared/gpu_base_video_decoder.cc b/starboard/xb1/shared/gpu_base_video_decoder.cc
index 84bab910f24a..ae0e0ec0f189 100644
--- a/starboard/xb1/shared/gpu_base_video_decoder.cc
+++ b/starboard/xb1/shared/gpu_base_video_decoder.cc
@@ -559,7 +559,9 @@ int GpuVideoDecoderBase::OnOutputRetrieved(
     if (is_hdr_video_) {
       image->AttachColorMetadata((*iter)->video_stream_info().color_metadata);
     }
-    written_inputs_.erase(iter);
+    if (iter != written_inputs_.cend()) {
+      written_inputs_.erase(iter);
+    }
   }
   scoped_refptr<VideoFrameImpl> frame(new VideoFrameImpl(
       timestamp, std::bind(&GpuVideoDecoderBase::DeleteVideoFrame, this,