diff --git a/src/MDConcMeasurementTypes.php b/src/MDConcMeasurementTypes.php
index 87c0a0a..0bb0ddc 100644
--- a/src/MDConcMeasurementTypes.php
+++ b/src/MDConcMeasurementTypes.php
@@ -3102,6 +3102,7 @@ final class MDConcMeasurementTypes implements MDImporterConcordanceListInterface
             "Außenmaß (Tiefe)",
             "Tiefe (Außenmaß)",
             "Teife",
+            "Relieftiefe",
             "length",
             "Länge (1b)",
             "Länge (S 6424/4)",