diff --git a/lib/server/kafka/AliEcsSynchronizer.js b/lib/server/kafka/AliEcsSynchronizer.js
index 077f5f41f6..a3ca8387cc 100644
--- a/lib/server/kafka/AliEcsSynchronizer.js
+++ b/lib/server/kafka/AliEcsSynchronizer.js
@@ -91,7 +91,7 @@ class AliEcsSynchronizer {
                     eorReasons.push({
                         category: 'LHC',
                         title: 'Dump',
-                        description: 'Run stopped due to LHC dump',
+                        description: 'Automatic stop of run by ECS due to LHC dump',
                     });
                 }
                 runService
@@ -101,7 +101,7 @@ class AliEcsSynchronizer {
                         { timeO2End: timestamp.toNumber() },
                         {
                             userO2Stop: { userIdentifier: { externalUserId }, name: userName },
-                            eorReasons,
+                            ...eorReasons?.length > 0 ? { eorReasons } : {},
                         },
                     )
                     .catch((error) => this._logger.errorMessage(`Failed to save run end for ${runNumber}: ${error.message}`));