diff --git a/src/crypto/chacha8.h b/src/crypto/chacha8.h
index fca5df703c..825346b3b8 100644
--- a/src/crypto/chacha8.h
+++ b/src/crypto/chacha8.h
@@ -23,10 +23,6 @@ namespace Crypto {
   struct chacha8_key {
     uint8_t data[CHACHA8_KEY_SIZE];
 
-    ~chacha8_key()
-    {
-      memset(data, 0, sizeof(data));
-    }
   };
 
   // MS VC 2012 doesn't interpret `class chacha8_iv` as POD in spite of [9.0.10], so it is a struct