diff --git a/core/smn_console.cpp b/core/smn_console.cpp
index 5ee3a344..a210fdd5 100644
--- a/core/smn_console.cpp
+++ b/core/smn_console.cpp
@@ -101,6 +101,10 @@ public:
 		else if (type == htConCmdIter)
 		{
 			ConCmdIter *iter = (ConCmdIter * )object;
+#if SOURCE_ENGINE == SE_LEFT4DEAD
+			// ICvarIteratorInternal has no virtual destructor
+			g_pMemAlloc->Free(iter->pLast);
+#endif
 			delete iter;
 		}
 	}