diff --git a/DRAMSys/dramSys/src/error/errormodel.cpp b/DRAMSys/dramSys/src/error/errormodel.cpp
index 30c93ea5..8d7fda5a 100644
--- a/DRAMSys/dramSys/src/error/errormodel.cpp
+++ b/DRAMSys/dramSys/src/error/errormodel.cpp
@@ -42,6 +42,14 @@ errorModel::errorModel()
     burstLenght = Configuration::getInstance().memSpec.BurstLength;
     numberOfColumns = Configuration::getInstance().memSpec.NumberOfColumns;
     bytesPerColumn = xmlAddressDecoder::getInstance().amount["bytes"];
+    numberOfRows = Configuration::getInstance().memSpec.NumberOfRows;
+
+    // Initialize the lastRow Access array:
+    lastRowAccess = new sc_time[numberOfRows];
+    for(unsigned int i = 0; i < numberOfRows; i++)
+    {
+        lastRowAccess[i] = SC_ZERO_TIME;
+    }
 }
 
 errorModel::~errorModel()
@@ -53,6 +61,9 @@ errorModel::~errorModel()
     }
     // Delete all elements from the dataMap:
     dataMap.clear();
+
+    // Remove all data from the lastRowAccess
+    delete [] lastRowAccess;
 }
 
 void errorModel::store(tlm::tlm_generic_payload &trans)
diff --git a/DRAMSys/dramSys/src/error/errormodel.h b/DRAMSys/dramSys/src/error/errormodel.h
index 56b029ba..4dd7e501 100644
--- a/DRAMSys/dramSys/src/error/errormodel.h
+++ b/DRAMSys/dramSys/src/error/errormodel.h
@@ -58,10 +58,14 @@ class errorModel
     unsigned int burstLenght;
     unsigned int numberOfColumns;
     unsigned int bytesPerColumn;
+    unsigned int numberOfRows;
 
     // Online Parameters:
     double temperature;
 
+    // Input data structures:
+
+    // To use a map for storing the data a comparing function must be defined
     struct DecodedAddressComparer
     {
         bool operator()( const DecodedAddress& first , const DecodedAddress& second) const
@@ -71,9 +75,10 @@ class errorModel
             return addrFirst < addrSecond;
         }
     };
-
-  private:
     std::map<DecodedAddress, unsigned char *, DecodedAddressComparer> dataMap;
+
+    // An array to save when the last ACT/REF to a row happened:
+    sc_time * lastRowAccess;
 };
 
 #endif // ERRORMODEL_H