diff --git a/src/hdf5.cpp b/src/hdf5.cpp
index 7ee7a2ed05..7ab8274e0f 100644
--- a/src/hdf5.cpp
+++ b/src/hdf5.cpp
@@ -529,8 +529,7 @@ void writeReturnData(
             int_buffer[i] = static_cast<int>(rdata.pscale[i]);
         createAndWriteInt1DDataset(file, hdf5Location + "/pscale", int_buffer);
     }
-    // crashes on macos?
-    //writeLogItemsToHDF5(file, rdata.messages, hdf5Location + "/messages");
+    writeLogItemsToHDF5(file, rdata.messages, hdf5Location + "/messages");
 
     writeReturnDataDiagnosis(rdata, file, hdf5Location + "/diagnosis");
 }
@@ -714,6 +713,8 @@ void writeLogItemsToHDF5(
             "severity", HOFFSET(amici::LogItem, severity),
             H5::PredType::NATIVE_INT
         );
+        // crashes on macos?
+        /*
         logItemType.insertMember(
             "identifier", HOFFSET(amici::LogItem, identifier),
             H5::StrType(H5::PredType::C_S1, H5T_VARIABLE)
@@ -722,7 +723,7 @@ void writeLogItemsToHDF5(
             "message", HOFFSET(amici::LogItem, message),
             H5::StrType(H5::PredType::C_S1, H5T_VARIABLE)
         );
-
+        */
         H5::DataSet dataset
             = file.createDataSet(hdf5Location, logItemType, dataspace);
         dataset.write(logItems.data(), logItemType);