diff --git a/src/test/java/net/hostsharing/hsadminng/hs/office/person/HsOfficePersonTypeConverterUnitTest.java b/src/test/java/net/hostsharing/hsadminng/hs/office/person/HsOfficePersonTypeConverterUnitTest.java
index 93283f2b..1077d462 100644
--- a/src/test/java/net/hostsharing/hsadminng/hs/office/person/HsOfficePersonTypeConverterUnitTest.java
+++ b/src/test/java/net/hostsharing/hsadminng/hs/office/person/HsOfficePersonTypeConverterUnitTest.java
@@ -1,5 +1,6 @@
 package net.hostsharing.hsadminng.hs.office.person;
 
+import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.EnumSource;
 
@@ -15,10 +16,19 @@ class HsOfficePersonTypeConverterUnitTest {
         assertThat(converter.convertToDatabaseColumn(given)).isEqualTo(given.shortName);
     }
 
+    @Test
+    void mapsNullToDatabaseValue() {
+        assertThat(converter.convertToDatabaseColumn(null)).isEqualTo(null);
+    }
 
     @ParameterizedTest
     @EnumSource(HsOfficePersonType.class)
     void mapsFromDatabaseValue(final HsOfficePersonType given) {
         assertThat(converter.convertToEntityAttribute(given.shortName)).isEqualTo(given);
     }
+
+    @Test
+    void mapsNullFromDatabaseValue() {
+        assertThat(converter.convertToEntityAttribute(null)).isEqualTo(null);
+    }
 }