diff --git a/vaadinfrontend/src/main/java/life/qbic/datamanager/views/projects/project/samples/registration/batch/SampleRegistrationSpreadsheet.java b/vaadinfrontend/src/main/java/life/qbic/datamanager/views/projects/project/samples/registration/batch/SampleRegistrationSpreadsheet.java
index d2a97c8cf..d93c07144 100644
--- a/vaadinfrontend/src/main/java/life/qbic/datamanager/views/projects/project/samples/registration/batch/SampleRegistrationSpreadsheet.java
+++ b/vaadinfrontend/src/main/java/life/qbic/datamanager/views/projects/project/samples/registration/batch/SampleRegistrationSpreadsheet.java
@@ -99,11 +99,12 @@ public void addSheetToSpreadsheet(MetadataType metaDataType) {
   }
 
   private void addRowsForInitialSamples(int numberOfSamples) {
-    setMaxRows(0);
+    // + 1 header row
+    setMaxRows(1);
     for (int currentRow = 1; currentRow <= numberOfSamples; currentRow++) {
       addRow();
     }
-    setMaxRows(numberOfSamples);
+    setMaxRows(numberOfSamples+1);
   }
 
   private static void prepareConditionItems(List<ExperimentalGroup> groups) {