diff --git a/src/core/evaluator.js b/src/core/evaluator.js
index 224b23b99..bf9b05563 100644
--- a/src/core/evaluator.js
+++ b/src/core/evaluator.js
@@ -542,7 +542,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
         }
       }
       return promise.then(function () {
-        if (gStateObj.length >= 0) {
+        if (gStateObj.length > 0) {
           operatorList.addOp(OPS.setGState, [gStateObj]);
         }
       });