diff --git a/lib/compass.js b/lib/compass.js
index 72223a6..c73575c 100644
--- a/lib/compass.js
+++ b/lib/compass.js
@@ -52,7 +52,7 @@ module.exports = function(files, opts, callback) {
     file = file.replace(/\\/g, '/');
     var relPathToSass = path.relative(path.resolve(opts.project, opts.sass), file);
     pathsToCss.push(path.resolve(opts.project, opts.css, gutil.replaceExtension(relPathToSass, '.css')));
-    filePaths.push(file);
+    filePaths.push(path.relative(opts.project, file));
   });
 
   var compassExecutable = 'compass';