diff --git a/Clp/src/ClpModel.cpp b/Clp/src/ClpModel.cpp
index 393cdbc4a..45ffe7d16 100644
--- a/Clp/src/ClpModel.cpp
+++ b/Clp/src/ClpModel.cpp
@@ -1385,15 +1385,6 @@ void ClpModel::resize(int newNumberRows, int newNumberColumns)
     maximumColumns_ = CoinMax(maximumColumns_, numberColumns_);
   }
 }
-// Makes sure matrix dimensions are at least model dimensions
-void ClpModel::synchronizeMatrix()
-{
-  if (matrix_) {
-    int numberRows = CoinMax(numberRows_,matrix_->getNumRows());
-    int numberColumns = CoinMax(numberColumns_,matrix_->getNumCols());
-    matrix_->setDimensions(numberRows,numberColumns);
-  }
-}
 // Deletes rows
 void ClpModel::deleteRows(int number, const int *which)
 {
@@ -1820,7 +1811,6 @@ void ClpModel::addRows(int number, const double *rowLower,
       matrix_->appendMatrix(number, 0, rowStarts, columns, elements);
     }
   }
-  synchronizeMatrix();
 }
 // Add rows
 void ClpModel::addRows(int number, const double *rowLower,
@@ -1853,7 +1843,6 @@ void ClpModel::addRows(int number, const double *rowLower,
     delete[] newIndex;
     delete[] newElements;
   }
-  synchronizeMatrix();
 }
 #ifndef CLP_NO_VECTOR
 void ClpModel::addRows(int number, const double *rowLower,
@@ -1907,7 +1896,6 @@ void ClpModel::addRows(int number, const double *rowLower,
   if (lengthNames_) {
     rowNames_.resize(numberRows_);
   }
-  synchronizeMatrix();
 }
 #endif
 #ifndef SLIM_CLP
@@ -2085,7 +2073,6 @@ int ClpModel::addRows(const CoinBuild &buildObject, bool tryPlusMinusOne, bool c
     // make sure matrix correct size
     matrix_->setDimensions(numberRows_, numberColumns_);
   }
-  synchronizeMatrix();
   return numberErrors;
 }
 #endif
@@ -2208,7 +2195,6 @@ int ClpModel::addRows(CoinModel &modelObject, bool tryPlusMinusOne, bool checkDu
           << numberErrors
           << CoinMessageEol;
     }
-    synchronizeMatrix();
     return numberErrors;
   } else {
     // not suitable for addRows
@@ -2300,7 +2286,6 @@ void ClpModel::addColumns(int number, const double *columnLower,
     // Do even if elements NULL (to resize)
     matrix_->appendMatrix(number, 1, columnStarts, rows, elements);
   }
-  synchronizeMatrix();
 }
 // Add columns
 void ClpModel::addColumns(int number, const double *columnLower,
@@ -2334,7 +2319,6 @@ void ClpModel::addColumns(int number, const double *columnLower,
     delete[] newIndex;
     delete[] newElements;
   }
-  synchronizeMatrix();
 }
 #ifndef CLP_NO_VECTOR
 void ClpModel::addColumns(int number, const double *columnLower,
@@ -2399,7 +2383,6 @@ void ClpModel::addColumns(int number, const double *columnLower,
   if (lengthNames_) {
     columnNames_.resize(numberColumns_);
   }
-  synchronizeMatrix();
 }
 #endif
 #ifndef SLIM_CLP
@@ -2534,7 +2517,6 @@ int ClpModel::addColumns(const CoinBuild &buildObject, bool tryPlusMinusOne, boo
     delete[] lower;
     delete[] upper;
   }
-  synchronizeMatrix();
   return 0;
 }
 #endif
@@ -2650,7 +2632,6 @@ int ClpModel::addColumns(CoinModel &modelObject, bool tryPlusMinusOne, bool chec
           << numberErrors
           << CoinMessageEol;
     }
-    synchronizeMatrix();
     return numberErrors;
   } else {
     // not suitable for addColumns
diff --git a/Clp/src/ClpModel.hpp b/Clp/src/ClpModel.hpp
index 983ba19c3..1b3ff4c11 100644
--- a/Clp/src/ClpModel.hpp
+++ b/Clp/src/ClpModel.hpp
@@ -140,10 +140,6 @@ class ClpModel {
   bool isInteger(int index) const;
   /// Resizes rim part of model
   void resize(int newNumberRows, int newNumberColumns);
-private:
-  /// Makes sure matrix dimensions are at least model dimensions
-  void synchronizeMatrix();
-public:
   /// Deletes rows
   void deleteRows(int number, const int *which);
   /// Add one row