diff --git a/JetStreamDriver.js b/JetStreamDriver.js
index 97e170c1..12cb462e 100644
--- a/JetStreamDriver.js
+++ b/JetStreamDriver.js
@@ -2376,11 +2376,14 @@ let BENCHMARKS = [
         ],
         tags: ["default", "js", "Generators"],
     }),
-    new DefaultBenchmark({
+    new AsyncBenchmark({
         name: "js-tokens",
         files: [
             "./generators/js-tokens.js",
         ],
+        preload: {
+            SOURCE_CODE: "./generators/js-tokens.js",
+        },
         tags: ["default", "js", "Generators"],
     }),
     new DefaultBenchmark({
diff --git a/generators/js-tokens.js b/generators/js-tokens.js
index 8385109c..e0b9d327 100644
--- a/generators/js-tokens.js
+++ b/generators/js-tokens.js
@@ -410,7 +410,6 @@ function jsTokensWrapperFunction() {
     };
 };
 
-const jsTokensSourceCode = jsTokensWrapperFunction.toString();
 const jsxSourceCode = `
 
 function Comment(props) {
@@ -437,11 +436,20 @@ function Comment(props) {
 const jsTokens = jsTokensWrapperFunction();
 
 class Benchmark {
+    EXPECTED_TOKEN_COUNT = 121975;
+
+    tokenCount = 0;
+    jsTokensSourceCode = "";
+
+    async init() {
+        this.jsTokensSourceCode = await JetStream.getString(JetStream.preload.SOURCE_CODE);
+    }
+
     runIteration() {
         this.tokenCount = 0;
 
         for (var i = 0; i < 25; i++) {
-            for (const token of jsTokens(jsTokensSourceCode))
+            for (const token of jsTokens(this.jsTokensSourceCode))
                 this.tokenCount++;
         }
 
@@ -452,7 +460,7 @@ class Benchmark {
     }
 
     validate(iterations) {
-        if (this.tokenCount !== 113975)
-            throw new Error(`this.tokenCount of ${this.tokenCount} is invalid!`);
+        if (this.tokenCount !== this.EXPECTED_TOKEN_COUNT)
+            throw new Error(`Expected this.tokenCount of ${this.EXPECTED_TOKEN_COUNT}, but got ${this.tokenCount}!`);
     }
 }