diff --git a/src/Evaluator.ts b/src/Evaluator.ts
index c065cd7..203e7a0 100644
--- a/src/Evaluator.ts
+++ b/src/Evaluator.ts
@@ -826,6 +826,12 @@ export default class Evaluator {
   }
 
   _evalPassPercent(user: StatsigUser, rule: ConfigRule, config: ConfigSpec) {
+    if (rule.passPercentage === 0) {
+      return false;
+    }
+    if (rule.passPercentage === 100) {
+      return true;
+    }
     const hash = computeUserHash(
       config.salt +
         '.' +