diff --git a/src/verifier.ts b/src/verifier.ts
index 04a4a3f..a85d27d 100644
--- a/src/verifier.ts
+++ b/src/verifier.ts
@@ -75,6 +75,6 @@ export class PomeriumVerifier {
       return false;
     }
     const currentDateInSeconds = new Date().getTime() / 1000;
-    return exp < (currentDateInSeconds + this.expirationBuffer)
+    return currentDateInSeconds < (exp + this.expirationBuffer);
   }
 }