diff --git a/dao/src/main/java/org/thingsboard/server/dao/ai/AiSettingsCacheKey.java b/dao/src/main/java/org/thingsboard/server/dao/ai/AiSettingsCacheKey.java
index 84ad396766..d732c08fc8 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/ai/AiSettingsCacheKey.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/ai/AiSettingsCacheKey.java
@@ -43,7 +43,7 @@ record AiSettingsCacheKey(UUID tenantId, UUID aiSettingsId) implements Versioned
     @NonNull
     @Override
     public String toString() {
-        return tenantId + "_" + aiSettingsId;
+        return /* cache name */ "_" + tenantId + "_" + aiSettingsId;
     }
 
 }