diff --git a/src/libs/actions/Report.js b/src/libs/actions/Report.js
index 7c482339da47..1b535f72fca9 100644
--- a/src/libs/actions/Report.js
+++ b/src/libs/actions/Report.js
@@ -897,7 +897,7 @@ function deleteReportComment(reportID, reportAction) {
         lastMessageText: '',
         lastVisibleActionCreated: '',
     };
-    if (reportAction.reportActionID && reportAction.childVisibleActionCount > 0) {
+    if (reportAction.childVisibleActionCount === 0) {
         optimisticReport = {
             lastMessageTranslationKey: '',
             lastMessageText: '',
@@ -963,6 +963,16 @@ function deleteReportComment(reportID, reportAction) {
         optimisticData.push(optimisticParentReportData);
     }
 
+    // Check to see if the report action we are deleting is the first comment on a thread report. In this case, we need to trigger
+    // an update to let the LHN know that the parentReportAction is now deleted.
+    if (ReportUtils.isThreadFirstChat(reportAction, reportID)) {
+        optimisticData.push({
+            onyxMethod: Onyx.METHOD.MERGE,
+            key: `${ONYXKEYS.COLLECTION.REPORT}${reportID}`,
+            value: {updateReportInLHN: true},
+        });
+    }
+
     const parameters = {
         reportID: originalReportID,
         reportActionID,