diff --git a/src/main/java/cz/mendelu/dnaAnalyser/analyse/zdna/ZdnaAnalyser.java b/src/main/java/cz/mendelu/dnaAnalyser/analyse/zdna/ZdnaAnalyser.java
index e938b306848508c466da4b7ae279314fd5802272..44764e359e4d38541942dcb5e4e1546233add68a 100644
--- a/src/main/java/cz/mendelu/dnaAnalyser/analyse/zdna/ZdnaAnalyser.java
+++ b/src/main/java/cz/mendelu/dnaAnalyser/analyse/zdna/ZdnaAnalyser.java
@@ -82,6 +82,7 @@ public class ZdnaAnalyser {
 
                         allResults.add(zdnaResult);
                     }
+                    i++; // skip next nucleotide
                 }
                 len = 1;
                 score = 0;