diff --git a/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/ImageSimilaritySearchController.java b/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/ImageSimilaritySearchController.java
index 62998a489..36f3f1bd0 100644
--- a/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/ImageSimilaritySearchController.java
+++ b/persistence-service-v1/persistence-service-external-api-impl-v1/src/main/java/com/iqser/red/persistence/service/v1/external/api/impl/controller/ImageSimilaritySearchController.java
@@ -34,7 +34,7 @@ public class ImageSimilaritySearchController implements ImageSimilaritySearchRes
     public ResponseEntity<ImageSimilaritySearchResponse> getSimilarImages(@RequestBody ImageSimilaritySearchRequest imageSimilaritySearchRequest) {
 
         log.info("received similiar image search request {}", imageSimilaritySearchRequest);
-        List<ImageDocument> similarImages = this.imageSimilarityService.findSimilarImages(imageSimilaritySearchRequest.getCentroId(),
+        List<ImageDocument> similarImages = this.imageSimilarityService.findSimilarImages(imageSimilaritySearchRequest.getAnnotationId(),
                                                                                           imageSimilaritySearchRequest.getDistance(),
                                                                                           imageSimilaritySearchRequest.getScope());
         List<String> similarImagesIds = new ArrayList<>();
diff --git a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/ImageSimilarityService.java b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/ImageSimilarityService.java
index 983c3951d..c522cdccc 100644
--- a/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/ImageSimilarityService.java
+++ b/persistence-service-v1/persistence-service-processor-v1/src/main/java/com/iqser/red/service/persistence/management/v1/processor/service/ImageSimilarityService.java
@@ -58,10 +58,10 @@ public class ImageSimilarityService {
     }
 
 
-    public List<ImageDocument> findSimilarImages(String centroId, double distance, Scope scope) throws Exception {
+    public List<ImageDocument> findSimilarImages(String annotationId, double distance, Scope scope) throws Exception {
 
-        ImageDocument centroImage = this.imageMongoService.findById(centroId);
-        log.info("image received with id {}: {}", centroId, centroImage);
+        ImageDocument centroImage = this.imageMongoService.findById(annotationId);
+        log.info("image received with id {}: {}", annotationId, centroImage);
         List<ImageDocument> similarImages = this.imageMongoService.findSimilarImages(centroImage, distance, scope);
         log.info("received similar images: {}", similarImages);
         return similarImages.stream()
diff --git a/persistence-service-v1/persistence-service-shared-api-v1/src/main/java/com/iqser/red/service/persistence/service/v1/api/shared/model/image/ImageSimilaritySearchRequest.java b/persistence-service-v1/persistence-service-shared-api-v1/src/main/java/com/iqser/red/service/persistence/service/v1/api/shared/model/image/ImageSimilaritySearchRequest.java
index 418d51d09..783567be6 100644
--- a/persistence-service-v1/persistence-service-shared-api-v1/src/main/java/com/iqser/red/service/persistence/service/v1/api/shared/model/image/ImageSimilaritySearchRequest.java
+++ b/persistence-service-v1/persistence-service-shared-api-v1/src/main/java/com/iqser/red/service/persistence/service/v1/api/shared/model/image/ImageSimilaritySearchRequest.java
@@ -20,7 +20,7 @@ public class ImageSimilaritySearchRequest {
 
     @NonNull
     @Schema(description = "id of the central image")
-    private String centroId;
+    private String annotationId;
     @NonNull
     @Schema(description = "the manhattan distance used in the similiarity search")
     private double distance;