diff --git a/fints4k/src/main/kotlin/net/dankito/banking/fints/response/ResponseParser.kt b/fints4k/src/main/kotlin/net/dankito/banking/fints/response/ResponseParser.kt
index 225dd289..2c9ac581 100644
--- a/fints4k/src/main/kotlin/net/dankito/banking/fints/response/ResponseParser.kt
+++ b/fints4k/src/main/kotlin/net/dankito/banking/fints/response/ResponseParser.kt
@@ -742,7 +742,10 @@ open class ResponseParser @JvmOverloads constructor(
             elements.add(dataString.substring(startIndex))
         }
 
-        return elements.map { it.replace(Separators.MaskingCharacter + separator, separator) }
+        return elements.map {
+            if (it.contains(Separators.MaskingCharacter + separator)) it.replace(Separators.MaskingCharacter + separator, separator.toString())
+            else it
+        }
     }