diff --git a/lib/Hoymiles/src/parser/AlarmLogParser.cpp b/lib/Hoymiles/src/parser/AlarmLogParser.cpp
index 1a64924a..66953fd7 100644
--- a/lib/Hoymiles/src/parser/AlarmLogParser.cpp
+++ b/lib/Hoymiles/src/parser/AlarmLogParser.cpp
@@ -258,16 +258,6 @@ void AlarmLogParser::getLogEntry(uint8_t entryId, AlarmLogEntry_t* entry)
     }
 }
 
-uint32_t AlarmLogParser::getLastUpdate()
-{
-    return _lastUpdate;
-}
-
-void AlarmLogParser::setLastUpdate(uint32_t lastUpdate)
-{
-    _lastUpdate = lastUpdate;
-}
-
 int AlarmLogParser::getTimezoneOffset()
 {
     // see: https://stackoverflow.com/questions/13804095/get-the-time-zone-gmt-offset-in-c/44063597#44063597
diff --git a/lib/Hoymiles/src/parser/AlarmLogParser.h b/lib/Hoymiles/src/parser/AlarmLogParser.h
index 3ecb5bbd..c984e347 100644
--- a/lib/Hoymiles/src/parser/AlarmLogParser.h
+++ b/lib/Hoymiles/src/parser/AlarmLogParser.h
@@ -1,4 +1,5 @@
 #pragma once
+#include "Parser.h"
 #include <cstdint>
 #include <Arduino.h>
 
@@ -12,7 +13,7 @@ struct AlarmLogEntry_t {
     time_t EndTime;
 };
 
-class AlarmLogParser {
+class AlarmLogParser : public Parser {
 public:
     void clearBuffer();
     void appendFragment(uint8_t offset, uint8_t* payload, uint8_t len);
@@ -20,14 +21,9 @@ public:
     uint8_t getEntryCount();
     void getLogEntry(uint8_t entryId, AlarmLogEntry_t* entry);
 
-    uint32_t getLastUpdate();
-    void setLastUpdate(uint32_t lastUpdate);
-
 private:
     static int getTimezoneOffset();
 
     uint8_t _payloadAlarmLog[ALARM_LOG_ENTRY_SIZE * ALARM_LOG_ENTRY_COUNT];
     uint8_t _alarmLogLength;
-
-    uint32_t _lastUpdate = 0;
 };
\ No newline at end of file
diff --git a/lib/Hoymiles/src/parser/StatisticsParser.cpp b/lib/Hoymiles/src/parser/StatisticsParser.cpp
index 13ef18d5..2310a42b 100644
--- a/lib/Hoymiles/src/parser/StatisticsParser.cpp
+++ b/lib/Hoymiles/src/parser/StatisticsParser.cpp
@@ -112,16 +112,6 @@ void StatisticsParser::setChannelMaxPower(uint8_t channel, uint16_t power)
     }
 }
 
-uint32_t StatisticsParser::getLastUpdate()
-{
-    return _lastUpdate;
-}
-
-void StatisticsParser::setLastUpdate(uint32_t lastUpdate)
-{
-    _lastUpdate = lastUpdate;
-}
-
 static float calcYieldTotalCh0(StatisticsParser* iv, uint8_t arg0)
 {
     float yield = 0;
diff --git a/lib/Hoymiles/src/parser/StatisticsParser.h b/lib/Hoymiles/src/parser/StatisticsParser.h
index 3a317a19..d253866a 100644
--- a/lib/Hoymiles/src/parser/StatisticsParser.h
+++ b/lib/Hoymiles/src/parser/StatisticsParser.h
@@ -1,4 +1,5 @@
 #pragma once
+#include "Parser.h"
 #include <Arduino.h>
 #include <cstdint>
 
@@ -92,7 +93,7 @@ const calcFunc_t calcFunctions[] = {
     { CALC_IRR_CH, &calcIrradiation }
 };
 
-class StatisticsParser {
+class StatisticsParser : public Parser {
 public:
     void clearBuffer();
     void appendFragment(uint8_t offset, uint8_t* payload, uint8_t len);
@@ -110,9 +111,6 @@ public:
     uint16_t getChannelMaxPower(uint8_t channel);
     void setChannelMaxPower(uint8_t channel, uint16_t power);
 
-    uint32_t getLastUpdate();
-    void setLastUpdate(uint32_t lastUpdate);
-
 private:
     uint8_t _payloadStatistic[STATISTIC_PACKET_SIZE];
     uint8_t _statisticLength;
@@ -120,6 +118,4 @@ private:
 
     const byteAssign_t* _byteAssignment;
     uint8_t _byteAssignmentCount;
-
-    uint32_t _lastUpdate = 0;
 };
\ No newline at end of file