diff --git a/gen/passes/GarbageCollect2Stack.cpp b/gen/passes/GarbageCollect2Stack.cpp
index 7b70d678..21cb96fc 100644
--- a/gen/passes/GarbageCollect2Stack.cpp
+++ b/gen/passes/GarbageCollect2Stack.cpp
@@ -146,6 +146,7 @@ namespace {
         : TypeInfoArgNr(typeInfoArgNr),
           SafeToDelete(safeToDelete),
           ReturnsArray(returnsArray) {}
+        virtual ~FunctionInfo() {}
     };
 
     class ArrayFI : public FunctionInfo {