diff --git a/force-app/main/classes/FFConfig.cls b/force-app/main/classes/FFConfig.cls
index eda3d9e..3cb89b6 100644
--- a/force-app/main/classes/FFConfig.cls
+++ b/force-app/main/classes/FFConfig.cls
@@ -72,7 +72,7 @@ public class FFConfig {
         }
 
         public Builder evalExpireAfter(Integer seconds) {
-            this.evalExpireAfter = ms;
+            this.evalExpireAfter = seconds;
             return this;
         }