diff --git a/lib/builder.js b/lib/builder.js
index e295ea6..2c8d892 100644
--- a/lib/builder.js
+++ b/lib/builder.js
@@ -495,7 +495,7 @@ Builder.prototype.compile = function(moduleNameOrLoad, outFile, opts) {
       return moduleNameOrLoad;
     return self.loader.normalize(moduleNameOrLoad)
     .then(function(moduleName) {
-      if (opts.cache !== true)
+      if (!opts || opts.cache !== true)
         self.invalidate(moduleName);
       return self.tracer.getLoadRecord(getCanonicalName(self.loader, moduleName), true);
     });