diff --git a/extensions/openpower-pels/pel_entry.cpp b/extensions/openpower-pels/pel_entry.cpp
new file mode 100644
index 0000000..403befd
--- /dev/null
+++ b/extensions/openpower-pels/pel_entry.cpp
@@ -0,0 +1,39 @@
+#include "pel_entry.hpp"
+
+#include <iostream>
+#include <xyz/openbmc_project/Common/error.hpp>
+
+namespace openpower
+{
+namespace pels
+{
+
+namespace common_error = sdbusplus::xyz::openbmc_project::Common::Error;
+
+bool PELEntry::managementSystemAck(bool value)
+{
+    auto current = sdbusplus::org::open_power::Logging::PEL::server::Entry::
+        managementSystemAck();
+    if (value != current)
+    {
+        current = sdbusplus::org::open_power::Logging::PEL::server::Entry::
+            managementSystemAck(value);
+
+        Repository::LogID id{Repository::LogID::Obmc(getMyId())};
+        if (auto logId = _repo->getLogID(id); logId.has_value())
+        {
+            // Update HMC acknowledge bit in PEL
+            _repo->setPELHMCTransState(
+                logId->pelID.id,
+                (value ? TransmissionState::acked : TransmissionState::newPEL));
+        }
+        else
+        {
+            throw common_error::InvalidArgument();
+        }
+    }
+    return current;
+}
+
+} // namespace pels
+} // namespace openpower