Index: lib/sanitizer_common/sanitizer_flag_parser.h
===================================================================
--- lib/sanitizer_common/sanitizer_flag_parser.h
+++ lib/sanitizer_common/sanitizer_flag_parser.h
@@ -23,6 +23,7 @@
 class FlagHandlerBase {
  public:
   virtual bool Parse(const char *value) { return false; }
+  virtual ~FlagHandlerBase() {}
 };
 
 template <typename T>