diff --git a/lib/less/parser.js b/lib/less/parser.js
index 71ab995a..b1a70654 100644
--- a/lib/less/parser.js
+++ b/lib/less/parser.js
@@ -526,7 +526,7 @@ less.Parser = function Parser(env) {
                     if (! $(')')) throw new(Error)("missing closing ) for url()");
 
                     return new(tree.URL)((value.value || value instanceof tree.Variable)
-                                        ? value : new(tree.Anonymous)(value));
+                                        ? value : new(tree.Anonymous)(value), imports.paths);
                 },
 
                 //
diff --git a/lib/less/tree/url.js b/lib/less/tree/url.js
index 03eb954a..62549ead 100644
--- a/lib/less/tree/url.js
+++ b/lib/less/tree/url.js
@@ -1,6 +1,12 @@
 (function (tree) {
 
-tree.URL = function (val) {
+tree.URL = function (val, paths) {
+    // Add the base path if the URL is relative and we are in the browser
+    if (!/^(?:http:\/)?\//.test(val.value) &&
+        paths.length > 0                   &&
+        typeof(window) !== 'undefined') {
+        val.value = [paths[0], val.value].join('/');
+    }
     this.value = val;
 };
 tree.URL.prototype = {