diff --git a/index.js b/index.js
index 548ea47e..c3a701e1 100644
--- a/index.js
+++ b/index.js
@@ -31,6 +31,7 @@ var gulpSass = function gulpSass(options, sync) {
 
     opts = assign({}, options);
     opts.data = file.contents.toString();
+    opts.file = opts.file || file.path;
 
     // Ensure `indentedSyntax` is true if a `.sass` file
     if (path.extname(file.path) === '.sass') {