diff --git a/src/core/evaluator.js b/src/core/evaluator.js
index 5739f372f..96bc5ff5b 100644
--- a/src/core/evaluator.js
+++ b/src/core/evaluator.js
@@ -832,7 +832,7 @@ class PartialEvaluator {
     throw reason;
   }
 
-  setGState({
+  async setGState({
     resources,
     gState,
     operatorList,