diff --git a/src/main/java/at/procon/eventhub/processing/dto/UnifiedRuntimeProcessingApiRequest.java b/src/main/java/at/procon/eventhub/processing/dto/UnifiedRuntimeProcessingApiRequest.java
index 6d4a725..28b68aa 100644
--- a/src/main/java/at/procon/eventhub/processing/dto/UnifiedRuntimeProcessingApiRequest.java
+++ b/src/main/java/at/procon/eventhub/processing/dto/UnifiedRuntimeProcessingApiRequest.java
@@ -1,5 +1,6 @@
 package at.procon.eventhub.processing.dto;
 
+import com.fasterxml.jackson.annotation.JsonAlias;
 import at.procon.eventhub.processing.model.UnifiedEventSourceFamily;
 import at.procon.eventhub.processing.model.UnifiedRuntimeEventBackend;
 import at.procon.eventhub.processing.model.UnifiedRuntimeProcessingRequest;
@@ -15,6 +16,7 @@ public record UnifiedRuntimeProcessingApiRequest(
         String tenantKey,
         Set<UnifiedEventSourceFamily> sourceFamilies,
         UnifiedRuntimeEventBackend eventBackend,
+        @JsonAlias("tachographSourceKinds")
         Set<String> sourceKinds,
         String driverKey,
         Set<String> driverKeys,
diff --git a/src/test/java/at/procon/eventhub/processing/api/UnifiedRuntimeProcessingControllerTest.java b/src/test/java/at/procon/eventhub/processing/api/UnifiedRuntimeProcessingControllerTest.java
index cb80e73..1bcd080 100644
--- a/src/test/java/at/procon/eventhub/processing/api/UnifiedRuntimeProcessingControllerTest.java
+++ b/src/test/java/at/procon/eventhub/processing/api/UnifiedRuntimeProcessingControllerTest.java
@@ -6,6 +6,7 @@ import static org.springframework.test.web.servlet.request.MockMvcRequestBuilder
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+import static org.assertj.core.api.Assertions.assertThat;
 
 import at.procon.eventhub.dto.EventDetailsDto;
 import at.procon.eventhub.dto.DriverRefDto;
@@ -25,10 +26,6 @@ import at.procon.eventhub.processing.eventprocessing.plan.RuntimeProcessingExecu
 import at.procon.eventhub.processing.eventprocessing.plan.RuntimeProcessingExecutionService;
 import at.procon.eventhub.processing.eventprocessing.plan.RuntimeProcessingExecutionApiRequest;
 import at.procon.eventhub.processing.eventprocessing.plan.RuntimeProcessingPlanDescriptorDto;
-import at.procon.eventhub.processing.eventprocessing.validation.RuntimeTachographDriverParityResultDto;
-import at.procon.eventhub.processing.eventprocessing.validation.RuntimeTachographParityCategoryComparisonDto;
-import at.procon.eventhub.processing.eventprocessing.validation.RuntimeTachographParityValidationResultDto;
-import at.procon.eventhub.processing.eventprocessing.validation.RuntimeTachographParityValidationService;
 import at.procon.eventhub.processing.model.UnifiedDiscoveredVehicleRef;
 import at.procon.eventhub.processing.model.UnifiedEventSourceFamily;
 import at.procon.eventhub.processing.model.UnifiedRuntimeEventBackend;
@@ -38,6 +35,10 @@ import at.procon.eventhub.processing.model.RuntimeDriverTimeline;
 import at.procon.eventhub.processing.model.RuntimeVehicleUsageInterval;
 import at.procon.eventhub.processing.model.UnifiedRuntimeProcessingRequest;
 import at.procon.eventhub.processing.service.UnifiedRuntimeDerivedProjectionService;
+import at.procon.eventhub.tachographfilesession.processing.validation.RuntimeTachographDriverParityResultDto;
+import at.procon.eventhub.tachographfilesession.processing.validation.RuntimeTachographParityCategoryComparisonDto;
+import at.procon.eventhub.tachographfilesession.processing.validation.RuntimeTachographParityValidationResultDto;
+import at.procon.eventhub.tachographfilesession.processing.validation.RuntimeTachographParityValidationService;
 import at.procon.eventhub.processing.service.UnifiedRuntimeDriverTimelineService;
 import at.procon.eventhub.processing.service.UnifiedRuntimeEventAssemblyService;
 import at.procon.eventhub.tachographfilesession.dto.TachographEsperDriverProcessingResultDto;
@@ -53,6 +54,7 @@ import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
 import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.test.web.servlet.MockMvc;
 import org.springframework.test.web.servlet.setup.MockMvcBuilders;
@@ -181,6 +183,48 @@ class UnifiedRuntimeProcessingControllerTest {
                 .andExpect(jsonPath("$.vehicleUsageIntervals[0].intervalId").value("CVU-1"));
     }
 
+    @Test
+    void acceptsLegacyTachographSourceKindsField() throws Exception {
+        UnifiedRuntimeEventAssemblyService eventAssemblyService = org.mockito.Mockito.mock(UnifiedRuntimeEventAssemblyService.class);
+        UnifiedRuntimeDriverTimelineService timelineService = org.mockito.Mockito.mock(UnifiedRuntimeDriverTimelineService.class);
+        UnifiedRuntimeDerivedProjectionService derivedProjectionService = org.mockito.Mockito.mock(UnifiedRuntimeDerivedProjectionService.class);
+        MockMvc mockMvc = MockMvcBuilders.standaloneSetup(new UnifiedRuntimeProcessingController(eventAssemblyService, timelineService, derivedProjectionService))
+                .setMessageConverters(new MappingJackson2HttpMessageConverter(objectMapper))
+                .setControllerAdvice(new UnifiedRuntimeProcessingExceptionHandler())
+                .build();
+
+        when(timelineService.loadDriverTimeline(any()))
+                .thenReturn(new RuntimeDriverTimeline(
+                        "DRIVER_CARD",
+                        OffsetDateTime.parse("2026-05-01T08:00:00Z"),
+                        OffsetDateTime.parse("2026-05-01T10:00:00Z"),
+                        List.of(),
+                        List.of(),
+                        List.of(),
+                        List.of()
+                ));
+
+        mockMvc.perform(post("/api/eventhub/runtime-processing/driver-timeline")
+                        .contentType("application/json")
+                        .content("""
+                                {
+                                  "tenantKey": "default",
+                                  "sourceFamilies": ["TACHOGRAPH_DB"],
+                                  "eventBackend": "SOURCE_DB",
+                                  "tachographSourceKinds": ["DRIVER_CARD"],
+                                  "driverSourceEntityId": "DRIVER:42",
+                                  "occurredFrom": "2026-05-01T08:00:00Z",
+                                  "occurredTo": "2026-05-01T10:00:00Z"
+                                }
+                                """))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.sourceKind").value("DRIVER_CARD"));
+
+        ArgumentCaptor<UnifiedRuntimeProcessingRequest> requestCaptor = ArgumentCaptor.forClass(UnifiedRuntimeProcessingRequest.class);
+        org.mockito.Mockito.verify(timelineService).loadDriverTimeline(requestCaptor.capture());
+        assertThat(requestCaptor.getValue().sourceKinds()).containsExactly("DRIVER_CARD");
+    }
+
     @Test
     void loadsDriverDerivedProjectionsViaRuntimeApi() throws Exception {
         UnifiedRuntimeEventAssemblyService eventAssemblyService = org.mockito.Mockito.mock(UnifiedRuntimeEventAssemblyService.class);