diff --git a/lib/less/parser.js b/lib/less/parser.js
index 51c8e03f..1d328d15 100644
--- a/lib/less/parser.js
+++ b/lib/less/parser.js
@@ -191,9 +191,17 @@ less.Parser = function Parser(env) {
         }
     }
 
+    function basename(pathname) {
+        if (less.mode === 'node') {
+            return require('path').basename(pathname);
+        } else {
+            return pathname.match(/[^\/]+$/)[0];
+        }
+    }
+
     function getInput(e, env) {
         if (e.filename && env.filename && (e.filename !== env.filename)) {
-            return parser.imports.contents[e.filename];
+            return parser.imports.contents[basename(e.filename)];
         } else {
             return input;
         }