diff --git a/index.js b/index.js
index c9ec822..0e077d2 100644
--- a/index.js
+++ b/index.js
@@ -175,7 +175,7 @@ function localizeDeclValue(valueNode, context) {
 
 function localizeDecl(decl, context) {
   var valuesNode = Tokenizer.parseValues(decl.value);
-  var localizeName = /animation(-name)?/.test(decl.prop);
+  var localizeName = /animation(-name)?$/.test(decl.prop);
   var newValuesNode = Object.create(valuesNode);
   newValuesNode.nodes = valuesNode.nodes.map(function(valueNode) {
     var subContext = {
diff --git a/test.js b/test.js
index ddecc33..f27f623 100644
--- a/test.js
+++ b/test.js
@@ -139,6 +139,11 @@ var tests = [
     input: '.foo { animation-name: bar; }',
     expected: ':local(.foo) { animation-name: :local(bar); }'
   },
+  {
+    should: 'not localize a single animation-delay',
+    input: '.foo { animation-delay: 1s; }',
+    expected: ':local(.foo) { animation-delay: 1s; }'
+  },
   {
     should: 'localize multiple animation-names',
     input: '.foo { animation-name: bar, foobar; }',