diff --git a/src/templates/nulldata.js b/src/templates/nulldata.js
index e996107..5b6af90 100644
--- a/src/templates/nulldata.js
+++ b/src/templates/nulldata.js
@@ -21,7 +21,7 @@ function encode (data) {
 function decode (buffer) {
   typeforce(check, buffer)
 
-  return buffer.slice(1)
+  return buffer.slice(2)
 }
 
 module.exports = {
diff --git a/test/templates.js b/test/templates.js
index f693b4d..6edcfbd 100644
--- a/test/templates.js
+++ b/test/templates.js
@@ -348,16 +348,20 @@ describe('script-templates', function () {
     })
   })
 
-  describe('nullData.output.encode', function () {
+  describe('nullData.output', function () {
     fixtures.valid.forEach(function (f) {
       if (f.type !== 'nulldata') return
 
       var data = new Buffer(f.data, 'hex')
       var scriptPubKey = bscript.nullData.output.encode(data)
 
-      it('returns ' + f.scriptPubKey, function () {
+      it('encodes to ' + f.scriptPubKey, function () {
         assert.strictEqual(bscript.toASM(scriptPubKey), f.scriptPubKey)
       })
+
+      it('decodes to ' + f.data, function () {
+        assert.deepEqual(bscript.nullData.output.decode(scriptPubKey), data)
+      })
     })
   })
 })