diff --git a/lib/sourcemap.js b/lib/sourcemap.js
index 663ef12e..403b4f4d 100644
--- a/lib/sourcemap.js
+++ b/lib/sourcemap.js
@@ -58,6 +58,15 @@ function SourceMap(options) {
         sourceRoot : options.root
     });
     var orig_map = options.orig && new MOZ_SourceMap.SourceMapConsumer(options.orig);
+
+    // Copy across inline sourcesContent, if any
+    if (options.orig.sourcesContent) {
+        var len = options.orig.sourcesContent.length;
+        for (var i = 0; i < len; i++) {
+            generator.setSourceContent(options.orig.sources[i], options.orig.sourcesContent[i]);
+        }
+    }
+
     function add(source, gen_line, gen_col, orig_line, orig_col, name) {
         if (orig_map) {
             var info = orig_map.originalPositionFor({