diff --git a/common/src/main/java/ctbrec/MigrateModel5_1_2.java b/common/src/main/java/ctbrec/MigrateModel5_1_2.java
index 8120769c..06d8197e 100644
--- a/common/src/main/java/ctbrec/MigrateModel5_1_2.java
+++ b/common/src/main/java/ctbrec/MigrateModel5_1_2.java
@@ -14,7 +14,7 @@ public class MigrateModel5_1_2 {
             model.put("bookmarked", model.getBoolean(MARKED_FOR_LATER));
             model.remove(MARKED_FOR_LATER);
         }
-        if (model.has("ADDED_TIMESTAMP")) {
+        if (model.has(ADDED_TIMESTAMP)) {
             model.put("addedAt", model.optLong(ADDED_TIMESTAMP));
             model.remove(ADDED_TIMESTAMP);
         }