diff --git a/lib/less/tree/url.js b/lib/less/tree/url.js
index f427070a..a4564588 100644
--- a/lib/less/tree/url.js
+++ b/lib/less/tree/url.js
@@ -5,7 +5,7 @@ tree.URL = function (val, paths) {
         this.attrs = val;
     } else {
         // Add the base path if the URL is relative and we are in the browser
-        if (!/^(?:https?:\/|file:\/|data:\/)?\//.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
+        if (!/^(?:https?:\/\/|file:\/\/|data:)?/.test(val.value) && paths.length > 0 && typeof(window) !== 'undefined') {
             val.value = paths[0] + (val.value.charAt(0) === '/' ? val.value.slice(1) : val.value);
         }
         this.value = val;
diff --git a/test/css/css.css b/test/css/css.css
index 0a23ee14..b0496cc3 100644
--- a/test/css/css.css
+++ b/test/css/css.css
@@ -80,3 +80,6 @@ p + h1 {
     kg9C9zwz3gVLMDA/A6P9/AFGGFyjOXZtQAAAAAElFTkSuQmCC);
   background-image: url(data:image/x-png,f9difSSFIIGFIFJD1f982FSDKAA9==);
 }
+#svg-data-uri {
+  background: transparent url('data:image/svg+xml, <svg version="1.1"><g></g></svg>');
+}
diff --git a/test/less/css.less b/test/less/css.less
index 803d10b1..3654cf82 100644
--- a/test/less/css.less
+++ b/test/less/css.less
@@ -94,3 +94,7 @@ p + h1 {
     kg9C9zwz3gVLMDA/A6P9/AFGGFyjOXZtQAAAAAElFTkSuQmCC);
   background-image: url(data:image/x-png,f9difSSFIIGFIFJD1f982FSDKAA9==);
 }
+
+#svg-data-uri {
+  background: transparent url('data:image/svg+xml, <svg version="1.1"><g></g></svg>');
+}