diff --git a/lib/builder.js b/lib/builder.js
index 1b6676d..2495b22 100644
--- a/lib/builder.js
+++ b/lib/builder.js
@@ -575,6 +575,8 @@ Builder.prototype.buildStatic = function(expressionOrTree, outFile, opts) {
   var entryPoints;
   if (typeof expressionOrTree == 'string')
     entryPoints = [expressionOrTree.split(/ [\+\&\-] /)[0]];
+  else if (expressionOrTree instanceof Array)
+    entryPoints = expressionOrTree[0];
 
   var outputOpts = processOutputOpts(opts, { outFile: outFile });
   var traceOpts = processTraceOpts(opts, { tracePackageConfig: false });