diff --git a/lab3/zad2/app/src/main/java/pl/jacekpoz/DHSetup.java b/lab3/zad2/app/src/main/java/pl/jacekpoz/DHSetup.java
index 1074d1c..5ee6253 100644
--- a/lab3/zad2/app/src/main/java/pl/jacekpoz/DHSetup.java
+++ b/lab3/zad2/app/src/main/java/pl/jacekpoz/DHSetup.java
@@ -34,7 +34,7 @@ public class DHSetup<T extends IGF> implements IDHSetup<T> {
     }
 
 
-    private boolean checkGenerator(T a) {
+    private boolean checkGenerator(final T a) {
         long p = a.getCharacteristic() - 1;
         for (long q : sieve_of_eratosthenes((long)Math.sqrt(p))) {
             T b = this.constructor.apply(new GF.Params(a.getCharacteristic(), p / q));