diff --git a/lib/crypto.js b/lib/crypto.js
index 7b980a0..4fbb9a3 100755
--- a/lib/crypto.js
+++ b/lib/crypto.js
@@ -144,7 +144,7 @@ exports.verify = function (raw, algorithm, key) {
         case 'HS512': {
 
             const compare = exports.generate(value, algorithm, key);
-            return Cryptiles.fixedTimeComparison(signature, compare);
+            return Cryptiles.fixedTimeComparison(compare, signature);
         }
 
         case 'EDDSA': {