diff --git a/lab3/zad2/app/src/main/java/pl/jacekpoz/GF.java b/lab3/zad2/app/src/main/java/pl/jacekpoz/GF.java
index a43f9b5..5fab315 100644
--- a/lab3/zad2/app/src/main/java/pl/jacekpoz/GF.java
+++ b/lab3/zad2/app/src/main/java/pl/jacekpoz/GF.java
@@ -18,7 +18,7 @@ public class GF implements IGF {
 
     public GF(final long characteristic, final long value) {
         this.characteristic = characteristic;
-        this.value = value;
+        this.value = value % this.characteristic;
     }
 
     /*