diff --git a/sql/sql_type.h b/sql/sql_type.h
index c61142d0a7b..67a302e1f8d 100644
--- a/sql/sql_type.h
+++ b/sql/sql_type.h
@@ -465,6 +465,7 @@ public:
   Type_all_attributes(const Type_all_attributes *other)
    :Type_std_attributes(other)
   { }
+  virtual ~Type_all_attributes() {}
   // Returns total number of decimal digits
   virtual uint decimal_precision() const= 0;
   /*