diff --git a/README.md b/README.md
index d4c8167..cd993a8 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,9 @@ Ist diese nicht gesetzt. wird intern eine Anonymisierung der Patienten-ID vorgen
 * `APP_PSEUDONYMIZE_PREFIX`: Standortbezogenes Prefix - `UNKNOWN`, wenn nicht gesetzt
 * `APP_PSEUDONYMIZE_GENERATOR`: `BUILDIN` oder `GPAS` - `BUILDIN`, wenn nicht gesetzt
 
+**Hinweise**: Der alte Konfigurationsparameter `APP_PSEUDONYMIZER` mit den Werten `GPAS` oder `BUILDIN` sollte nicht
+mehr verwendet werden.
+
 #### Eingebaute Anonymisierung
 
 Wurde keine oder die Verwendung der eingebauten Anonymisierung konfiguriert, so wird für die Patienten-ID der
diff --git a/src/main/kotlin/dev/dnpm/etl/processor/config/AppConfigProperties.kt b/src/main/kotlin/dev/dnpm/etl/processor/config/AppConfigProperties.kt
index 9c92869..08a45bb 100644
--- a/src/main/kotlin/dev/dnpm/etl/processor/config/AppConfigProperties.kt
+++ b/src/main/kotlin/dev/dnpm/etl/processor/config/AppConfigProperties.kt
@@ -20,11 +20,16 @@
 package dev.dnpm.etl.processor.config
 
 import org.springframework.boot.context.properties.ConfigurationProperties
+import org.springframework.boot.context.properties.DeprecatedConfigurationProperty
 
 @ConfigurationProperties(AppConfigProperties.NAME)
 data class AppConfigProperties(
     var bwhcUri: String?,
-    var generator: PseudonymGenerator = PseudonymGenerator.BUILDIN,
+    @get:DeprecatedConfigurationProperty(
+        reason = "Deprecated in favor of 'app.pseudonymize.generator'",
+        replacement = "app.pseudonymize.generator"
+    )
+    var pseudonymizer: PseudonymGenerator = PseudonymGenerator.BUILDIN,
     var transformations: List<TransformationProperties> = listOf()
 ) {
     companion object {
@@ -34,6 +39,7 @@ data class AppConfigProperties(
 
 @ConfigurationProperties(PseudonymizeConfigProperties.NAME)
 data class PseudonymizeConfigProperties(
+    var generator: PseudonymGenerator = PseudonymGenerator.BUILDIN,
     val prefix: String = "UNKNOWN",
 ) {
     companion object {
diff --git a/src/main/kotlin/dev/dnpm/etl/processor/config/AppConfiguration.kt b/src/main/kotlin/dev/dnpm/etl/processor/config/AppConfiguration.kt
index 42632aa..d8604be 100644
--- a/src/main/kotlin/dev/dnpm/etl/processor/config/AppConfiguration.kt
+++ b/src/main/kotlin/dev/dnpm/etl/processor/config/AppConfiguration.kt
@@ -28,6 +28,7 @@ import dev.dnpm.etl.processor.pseudonym.PseudonymizeService
 import dev.dnpm.etl.processor.services.Transformation
 import dev.dnpm.etl.processor.services.TransformationService
 import org.slf4j.LoggerFactory
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty
 import org.springframework.boot.context.properties.EnableConfigurationProperties
 import org.springframework.context.annotation.Bean
@@ -54,18 +55,32 @@ class AppConfiguration {
 
     private val logger = LoggerFactory.getLogger(AppConfiguration::class.java)
 
-    @ConditionalOnProperty(value = ["app.pseudonymizer"], havingValue = "GPAS")
+    @ConditionalOnProperty(value = ["app.pseudonymize.generator"], havingValue = "GPAS")
     @Bean
     fun gpasPseudonymGenerator(configProperties: GPasConfigProperties): Generator {
         return GpasPseudonymGenerator(configProperties)
     }
 
-    @ConditionalOnProperty(value = ["app.pseudonymizer"], havingValue = "BUILDIN", matchIfMissing = true)
+    @ConditionalOnProperty(value = ["app.pseudonymize.generator"], havingValue = "BUILDIN")
     @Bean
     fun buildinPseudonymGenerator(): Generator {
         return AnonymizingGenerator()
     }
 
+    @ConditionalOnProperty(value = ["app.pseudonymizer"], havingValue = "GPAS")
+    @ConditionalOnMissingBean
+    @Bean
+    fun gpasPseudonymGeneratorOnDeprecatedProperty(configProperties: GPasConfigProperties): Generator {
+        return GpasPseudonymGenerator(configProperties)
+    }
+
+    @ConditionalOnProperty(value = ["app.pseudonymizer"], havingValue = "BUILDIN")
+    @ConditionalOnMissingBean
+    @Bean
+    fun buildinPseudonymGeneratorOnDeprecatedProperty(): Generator {
+        return AnonymizingGenerator()
+    }
+
     @Bean
     fun pseudonymizeService(
         generator: Generator,