diff --git a/common/src/main/java/ctbrec/image/LocalPortraitStore.java b/common/src/main/java/ctbrec/image/LocalPortraitStore.java
index 456c7838..1f8bb5bb 100644
--- a/common/src/main/java/ctbrec/image/LocalPortraitStore.java
+++ b/common/src/main/java/ctbrec/image/LocalPortraitStore.java
@@ -8,9 +8,6 @@ import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.util.Optional;
-import java.util.UUID;
-
-import static java.nio.charset.StandardCharsets.UTF_8;
 
 @Slf4j
 public record LocalPortraitStore(Config config) implements PortraitStore {
@@ -38,7 +35,7 @@ public record LocalPortraitStore(Config config) implements PortraitStore {
 
     @Override
     public void writePortrait(String modelUrl, byte[] data) throws IOException {
-        String portraitId = config.getSettings().modelPortraits.getOrDefault(modelUrl, UUID.nameUUIDFromBytes(modelUrl.getBytes(UTF_8)).toString());
+        String portraitId = config.getSettings().modelPortraits.getOrDefault(modelUrl, idForModelUrl(modelUrl));
         File portraitFile = getPortraitFile(portraitId);
         Files.write(portraitFile.toPath(), data);
         config.getSettings().modelPortraits.put(modelUrl, portraitId);
diff --git a/common/src/main/java/ctbrec/image/PortraitStore.java b/common/src/main/java/ctbrec/image/PortraitStore.java
index 4666fb23..182c7a9c 100644
--- a/common/src/main/java/ctbrec/image/PortraitStore.java
+++ b/common/src/main/java/ctbrec/image/PortraitStore.java
@@ -2,6 +2,9 @@ package ctbrec.image;
 
 import java.io.IOException;
 import java.util.Optional;
+import java.util.UUID;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
 
 public interface PortraitStore {
 
@@ -15,4 +18,8 @@ public interface PortraitStore {
     void writePortrait(String modelUrl, byte[] data) throws IOException;
 
     void removePortrait(String modelUrl) throws IOException;
+
+    default String idForModelUrl(String modelUrl) {
+        return UUID.nameUUIDFromBytes(modelUrl.getBytes(UTF_8)).toString();
+    }
 }