diff --git a/src/columns/ColID.cpp b/src/columns/ColID.cpp
index a88d3b9f8..de2f41fa3 100644
--- a/src/columns/ColID.cpp
+++ b/src/columns/ColID.cpp
@@ -27,12 +27,9 @@
 #include <cmake.h>
 #include <ColID.h>
 #include <math.h>
-#include <Context.h>
 #include <text.h>
 #include <i18n.h>
 
-extern Context context;
-
 ////////////////////////////////////////////////////////////////////////////////
 ColumnID::ColumnID ()
 {
@@ -44,11 +41,6 @@ ColumnID::ColumnID ()
   _examples   = {"123"};
 }
 
-////////////////////////////////////////////////////////////////////////////////
-ColumnID::~ColumnID ()
-{
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // Set the minimum and maximum widths for the value.
 void ColumnID::measure (Task& task, unsigned int& minimum, unsigned int& maximum)
diff --git a/src/columns/ColID.h b/src/columns/ColID.h
index 67fade2c6..795002071 100644
--- a/src/columns/ColID.h
+++ b/src/columns/ColID.h
@@ -33,8 +33,6 @@ class ColumnID : public ColumnTypeNumeric
 {
 public:
   ColumnID ();
-  ~ColumnID ();
-
   void measure (Task&, unsigned int&, unsigned int&);
   void render (std::vector <std::string>&, Task&, int, Color&);