diff --git a/lib/script/script.js b/lib/script/script.js
index db4067db..74e16a14 100644
--- a/lib/script/script.js
+++ b/lib/script/script.js
@@ -986,14 +986,14 @@ Script.prototype.execute = function execute(stack, flags, tx, index, version) {
           res = Script.checksig(hash, sig, key, flags);
         }
 
-        stack.pop();
-        stack.pop();
-
         if (!res && (flags & constants.flags.VERIFY_NULLFAIL)) {
           if (sig.length !== 0)
             throw new ScriptError('NULLFAIL', op, ip);
         }
 
+        stack.pop();
+        stack.pop();
+
         stack.push(res ? STACK_TRUE : STACK_FALSE);
 
         if (op === opcodes.OP_CHECKSIGVERIFY) {