diff --git a/common/data/src/main/java/org/thingsboard/server/common/data/alarm/Alarm.java b/common/data/src/main/java/org/thingsboard/server/common/data/alarm/Alarm.java
index abd1515ff2..9f9bdec49d 100644
--- a/common/data/src/main/java/org/thingsboard/server/common/data/alarm/Alarm.java
+++ b/common/data/src/main/java/org/thingsboard/server/common/data/alarm/Alarm.java
@@ -84,6 +84,7 @@ public class Alarm extends BaseData<AlarmId> implements HasName, HasTenantId, Ha
     @Schema(description = "Timestamp of the alarm assignment, in milliseconds", example = "1634115928465")
     private long assignTs;
     @Schema(description = "JSON object with alarm details")
+    @JsonProperty
     private transient JsonNode details;
     @Schema(description = "Propagation flag to specify if alarm should be propagated to parent entities of alarm originator", example = "true")
     private boolean propagate;