diff --git a/core-buffer/src/WriterH5Writer.cpp b/core-buffer/src/WriterH5Writer.cpp
index 4fda3d2..34ff419 100644
--- a/core-buffer/src/WriterH5Writer.cpp
+++ b/core-buffer/src/WriterH5Writer.cpp
@@ -76,7 +76,7 @@ WriterH5Writer::WriterH5Writer(
 
     is_good_frame_dataset_ = file_.createDataSet(
             "is_good_frame",
-            H5::PredType::NATIVE_UINT32,
+            H5::PredType::NATIVE_UINT8,
             metadata_dataspace,
             metadata_dataset_properties);