diff --git a/proxy/http2/Http2Frame.h b/proxy/http2/Http2Frame.h
index 1715dd59368..dd68b8c105c 100644
--- a/proxy/http2/Http2Frame.h
+++ b/proxy/http2/Http2Frame.h
@@ -53,6 +53,7 @@ class Http2TxFrame
 {
 public:
   Http2TxFrame(const Http2FrameHeader &h) : _hdr(h) {}
+  virtual ~Http2TxFrame() {}
 
   // Don't allocate on heap
   void *operator new(std::size_t)   = delete;
diff --git a/proxy/http2/Http2FrequencyCounter.h b/proxy/http2/Http2FrequencyCounter.h
index 0b6de174afc..bcd3dbba561 100644
--- a/proxy/http2/Http2FrequencyCounter.h
+++ b/proxy/http2/Http2FrequencyCounter.h
@@ -31,6 +31,7 @@ class Http2FrequencyCounter
 public:
   void increment(uint16_t amount = 1);
   uint32_t get_count();
+  virtual ~Http2FrequencyCounter() {}
 
 protected:
   uint16_t _count[2]      = {0};