diff --git a/include/ArduinoJson/JsonBuffer.hpp b/include/ArduinoJson/JsonBuffer.hpp
index 86b71228..0d1f7bd4 100644
--- a/include/ArduinoJson/JsonBuffer.hpp
+++ b/include/ArduinoJson/JsonBuffer.hpp
@@ -20,7 +20,10 @@ class JsonObject;
 // fixed memory allocation.
 class JsonBuffer {
  public:
-  virtual ~JsonBuffer() {}
+  // CAUTION: NO VIRTUAL DESTRUCTOR!
+  // If we add a virtual constructor the Arduino compiler will add malloc() and
+  // free() to the binary, adding 706 useless bytes.
+  // virtual ~JsonBuffer() {}
 
   // Allocates an empty JsonArray.
   //
diff --git a/include/ArduinoJson/StaticJsonBuffer.hpp b/include/ArduinoJson/StaticJsonBuffer.hpp
index 02b1d887..d2e9a9b4 100644
--- a/include/ArduinoJson/StaticJsonBuffer.hpp
+++ b/include/ArduinoJson/StaticJsonBuffer.hpp
@@ -17,7 +17,6 @@ template <size_t CAPACITY>
 class StaticJsonBuffer : public JsonBuffer {
  public:
   explicit StaticJsonBuffer() : _size(0) {}
-  virtual ~StaticJsonBuffer() {}
 
   size_t capacity() const { return CAPACITY; }
   size_t size() const { return _size; }