1 files changed, 1 insertions, 1 deletions

diff --git a/src/programchain.h b/src/programchain.h
index 333c91b..1752d2c 100644
--- a/src/programchain.h
+++ b/src/programchain.h
@@ -20,7 +20,7 @@ public:
         /**
          * Destroy your chain.
          */
-        ~ProgramChain();
+        virtual ~ProgramChain();
 
         /** Adds a link to the end of the chain.
           *@param pLink A pointer to the link to add to the chain.