diff --git a/include/etl/type_def.h b/include/etl/type_def.h
index c124aa7e1..b864a3f43 100644
--- a/include/etl/type_def.h
+++ b/include/etl/type_def.h
@@ -69,12 +69,6 @@ namespace etl
     {
     }
 
-    //*********************************************************************
-    ETL_CONSTEXPR type_def(const type_def& other)
-      : value(other.value)
-    {
-    }
-
     //*********************************************************************
     ETL_CONSTEXPR operator TValue() const
     {
@@ -244,13 +238,6 @@ namespace etl
       return *this;
     }
 
-    //*********************************************************************
-    ETL_CONSTEXPR14 type_def& operator =(const type_def& rhs)
-    {
-      value = rhs.value;
-      return *this;
-    }
-
     //*********************************************************************
     TValue& get()
     {