1 files changed, 1 insertions, 1 deletions

diff --git a/src/hashfunctionint.h b/src/hashfunctionint.h
index 57bce89..0fbc764 100644
--- a/src/hashfunctionint.h
+++ b/src/hashfunctionint.h
@@ -18,7 +18,7 @@ public:
         /**
          * Standard Deconstructor.
          */
-        ~HashFunctionInt();
+        virtual ~HashFunctionInt();
         unsigned long int hash( const void *id );
         bool cmpIDs( const void *id1, const void *id2 );
 };