diff --git a/code/common/model/src/main/java/nu/marginalia/model/gson/GsonFactory.java b/code/common/model/src/main/java/nu/marginalia/model/gson/GsonFactory.java
index 04496ff8..ec5a9a74 100644
--- a/code/common/model/src/main/java/nu/marginalia/model/gson/GsonFactory.java
+++ b/code/common/model/src/main/java/nu/marginalia/model/gson/GsonFactory.java
@@ -3,6 +3,7 @@ package nu.marginalia.model.gson;
 import com.google.gson.*;
 import marcono1234.gson.recordadapter.RecordTypeAdapterFactory;
 import nu.marginalia.bigstring.BigString;
+import nu.marginalia.bigstring.CompressedBigString;
 import nu.marginalia.model.EdgeDomain;
 import nu.marginalia.model.EdgeUrl;
 import nu.marginalia.model.id.EdgeId;
@@ -27,6 +28,7 @@ public class GsonFactory {
                 .registerTypeAdapter(EdgeId.class, (JsonSerializer<EdgeId<?>>) (src, typeOfSrc, context) -> new JsonPrimitive(src.id()))
                 .registerTypeAdapter(BigString.class, (JsonDeserializer<BigString>) (json, typeOfT, context) -> BigString.encode(json.getAsString()))
                 .registerTypeAdapter(BigString.class, (JsonSerializer<BigString>) (src, typeOfT, context) -> new JsonPrimitive(src.decode()))
+                .registerTypeAdapter(CompressedBigString.class, (JsonSerializer<BigString>) (src, typeOfT, context) -> new JsonPrimitive(src.decode()))
                 .serializeSpecialFloatingPointValues()
                 .create();
     }