diff --git a/pdb-ui/src/main/java/org/lucares/pdbui/CsvToEntryTransformer.java b/pdb-ui/src/main/java/org/lucares/pdbui/CsvToEntryTransformer.java
index 9a558fe..40dc131 100644
--- a/pdb-ui/src/main/java/org/lucares/pdbui/CsvToEntryTransformer.java
+++ b/pdb-ui/src/main/java/org/lucares/pdbui/CsvToEntryTransformer.java
@@ -128,10 +128,10 @@ class CsvToEntryTransformer {
         for (int i = 0; i < size; i++) {
             final int separatorPosition = separatorPositions.get(i);
 
-            final int compressedString = Tags.STRING_COMPRESSOR.put(line, lastSeparatorPosition + 1, separatorPosition);
-            final String columnName = Tags.STRING_COMPRESSOR.get(compressedString);
+            final String columnName = new String(line, lastSeparatorPosition + 1,
+                    separatorPosition - lastSeparatorPosition - 1, StandardCharsets.UTF_8);
 
-            columns[i] = ignoreColum(columnName) ? IGNORE_COLUMN : compressedString;
+            columns[i] = ignoreColum(columnName) ? IGNORE_COLUMN : Tags.STRING_COMPRESSOR.put(columnName);
 
             lastSeparatorPosition = separatorPosition;
         }