diff --git a/crlcore/src/ccore/alliance/vst/VstDriver.cpp b/crlcore/src/ccore/alliance/vst/VstDriver.cpp
index 9a604c41..c5bfbb1e 100644
--- a/crlcore/src/ccore/alliance/vst/VstDriver.cpp
+++ b/crlcore/src/ccore/alliance/vst/VstDriver.cpp
@@ -49,6 +49,8 @@ namespace CRL {
     vhdlEntity->toEntity( ccelltest );
     ccelltest << endl;
     ccelltest.close();
+
+    Vhdl::EntityExtension::destroy( cell );
   }