diff --git a/build.gradle b/build.gradle
index 332a5410..a4cc262f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -66,6 +66,7 @@ dependencies {
     implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.17.0'
     implementation 'org.openapitools:jackson-databind-nullable:0.2.6'
     implementation 'org.apache.commons:commons-text:1.11.0'
+    implementation 'commons-codec:commons-codec:1.17.0'
     implementation 'org.modelmapper:modelmapper:3.2.0'
     implementation 'org.iban4j:iban4j:3.2.7-RELEASE'
     implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.4.0'
diff --git a/src/main/java/net/hostsharing/hsadminng/hs/validation/HsEntityValidator.java b/src/main/java/net/hostsharing/hsadminng/hs/validation/HsEntityValidator.java
index da0ba611..bf755bd2 100644
--- a/src/main/java/net/hostsharing/hsadminng/hs/validation/HsEntityValidator.java
+++ b/src/main/java/net/hostsharing/hsadminng/hs/validation/HsEntityValidator.java
@@ -95,8 +95,7 @@ public abstract class HsEntityValidator<E extends PropertiesProvider> {
             // FIXME: maybe move to ValidatableProperty.postProcess(...)?
             if ( p.isWriteOnly()) {
                 copy.remove(p.propertyName);
-            }
-            if (p.isComputed()) {
+            } else if (p.isComputed()) {
                 copy.put(p.propertyName, p.compute(entity));
             }
         });