diff --git a/Adafruit_PCD8544.h b/Adafruit_PCD8544.h
index 13409a7..5b31a6b 100644
--- a/Adafruit_PCD8544.h
+++ b/Adafruit_PCD8544.h
@@ -68,6 +68,8 @@ class Adafruit_PCD8544 : public Adafruit_GFX {
   Adafruit_PCD8544(int8_t dc_pin, int8_t cs_pin, int8_t rst_pin,
                    SPIClass *theSPI = &SPI);
 
+  virtual ~Adafruit_PCD8544() {}
+
   bool begin(uint8_t contrast = 40, uint8_t bias = 0x04);
 
   void command(uint8_t c);