diff --git a/src/columns/Column.cpp b/src/columns/Column.cpp
index ce9b01ea7..73d337d73 100644
--- a/src/columns/Column.cpp
+++ b/src/columns/Column.cpp
@@ -266,6 +266,12 @@ bool Column::validate (std::string& input)
   return input.length () ? true : false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+void Column::modify (Task& task, const std::string& value)
+{
+  task.set (_name, value);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // All integer values are right-justified.
 void Column::renderInteger (
diff --git a/src/columns/Column.h b/src/columns/Column.h
index a6078ccd3..17fdf44bd 100644
--- a/src/columns/Column.h
+++ b/src/columns/Column.h
@@ -63,7 +63,8 @@ public:
   virtual void renderHeader (std::vector <std::string>&, int, Color&);
   virtual void render (std::vector <std::string>&, const std::string&, int, Color&) {};
   virtual void render (std::vector <std::string>&, Task&, int, Color&)              {};
-  virtual std::string modify (std::string& input)                                   { return input; };
+
+  virtual void modify (Task&, const std::string&);
 
 protected:
   void renderInteger     (std::vector <std::string>&, int, Color&, int);