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;
diff --git a/src/main/resources/application.yaml b/src/main/resources/application.yaml
index c8778c4a7068e2e5829a0311b7840fa7dcb61679..3c8f8b7c8a2309b4ff8d6d99a1b1bb9da4cc4e28 100644
--- a/src/main/resources/application.yaml
+++ b/src/main/resources/application.yaml
@@ -69,7 +69,8 @@ sequence:
     78a4e97d-8eb4-42cf-a5df-bacd5ca61646,
     eb50a995-a044-4f33-8ffa-5b184750b120,
     50a722e2-7814-4e82-9621-f1f30cc985fe,
-    9a8e796b-1372-493d-8326-6769338d378b
+    9a8e796b-1372-493d-8326-6769338d378b,
+    d572414c-8919-4000-8e60-f3baefe3469a
 
   ncbi:
     ## Configuring access to the NCBI database
diff --git a/src/main/resources/db/migration/V16__add_zdna_test_sequence.sql b/src/main/resources/db/migration/V16__add_zdna_test_sequence.sql
new file mode 100644
index 0000000000000000000000000000000000000000..2897a89f12de184ff09e3c3c356b8412326bed15
--- /dev/null
+++ b/src/main/resources/db/migration/V16__add_zdna_test_sequence.sql
@@ -0,0 +1,6 @@
+insert into sequences (id, buffer_id, circular, created, length, type, owner_id, name, ncbi)
+values ('d572414c-8919-4000-8e60-f3baefe3469a', 'd572414c-8919-4000-8e60-f3baefe3469a', FALSE,
+        '2024-03-05 09:46:01.858', 180, 0, '6afdeb76-a6ee-4d0b-b07a-0cc0ee9ba885', 'Test sequence 6 Z-DNA hunter', NULL);
+
+insert into sequence_tags (sequence_id, tags)
+values ('d572414c-8919-4000-8e60-f3baefe3469a', 'test');
\ No newline at end of file