diff --git a/src/View/Pollutants/Edit/Table.py b/src/View/Pollutants/Edit/Table.py
index f94c50ae..26b77b61 100644
--- a/src/View/Pollutants/Edit/Table.py
+++ b/src/View/Pollutants/Edit/Table.py
@@ -96,6 +96,15 @@ class ComboBoxDelegate(QItemDelegate):
 
 
 class TableModel(PamhyrTableModel):
+    def is_same_data(self, index, value):
+        row = index.row()
+        column = index.column()
+
+        if self._headers[column] == "type":
+            return int(self._data.data[row][column]) == int(value)
+
+        return super(TableModel, self).is_same_data(index, value)
+
     def data(self, index, role):
         if role == Qt.TextAlignmentRole:
             return Qt.AlignHCenter | Qt.AlignVCenter