diff --git a/tools/tropohouse.js b/tools/tropohouse.js
index 802d07a7b9..c6e9cd25a7 100644
--- a/tools/tropohouse.js
+++ b/tools/tropohouse.js
@@ -468,7 +468,11 @@ _.extend(exports.Tropohouse.prototype, {
 
         // Delete temp directories now (asynchronously).
         _.each(buildTempDirs, function (buildTempDir) {
-          files.freeTempDir(buildTempDir);
+          // On Windows, the first item added to buildTempDir is actually
+          // not a temporary directory, it's the real package path
+          if (buildTempDir !== packagePath) {
+            files.freeTempDir(buildTempDir);
+          }
         });
 
         // Clean up old version.