diff --git a/services/pull/merge.go b/services/pull/merge.go
index 20be7c5b5a877..ea3efd6f6dc77 100644
--- a/services/pull/merge.go
+++ b/services/pull/merge.go
@@ -53,6 +53,9 @@ func getMergeMessage(ctx context.Context, baseGitRepo *git.Repository, pr *issue
 		issueReference = "!"
 	}
 
+	reviewedOnTrailer := fmt.Sprintf("Reviewed-on: %s/%s", setting.AppURL, pr.Issue.Link())
+	reviewedByTrailer := pr.GetApprovers(ctx)
+
 	if mergeStyle != "" {
 		templateFilepath := fmt.Sprintf(".gitea/default_merge_message/%s_TEMPLATE.md", strings.ToUpper(string(mergeStyle)))
 		commit, err := baseGitRepo.GetBranchCommit(pr.BaseRepo.DefaultBranch)
@@ -116,20 +119,22 @@ func getMergeMessage(ctx context.Context, baseGitRepo *git.Repository, pr *issue
 		return "", "", nil
 	}
 
+	body = fmt.Sprintf("%s\n%s", reviewedOnTrailer, reviewedByTrailer)
+
 	// Squash merge has a different from other styles.
 	if mergeStyle == repo_model.MergeStyleSquash {
-		return fmt.Sprintf("%s (%s%d)", pr.Issue.Title, issueReference, pr.Issue.Index), "", nil
+		return fmt.Sprintf("%s (%s%d)", pr.Issue.Title, issueReference, pr.Issue.Index), body, nil
 	}
 
 	if pr.BaseRepoID == pr.HeadRepoID {
-		return fmt.Sprintf("Merge pull request '%s' (%s%d) from %s into %s", pr.Issue.Title, issueReference, pr.Issue.Index, pr.HeadBranch, pr.BaseBranch), "", nil
+		return fmt.Sprintf("Merge pull request '%s' (%s%d) from %s into %s", pr.Issue.Title, issueReference, pr.Issue.Index, pr.HeadBranch, pr.BaseBranch), body, nil
 	}
 
 	if pr.HeadRepo == nil {
-		return fmt.Sprintf("Merge pull request '%s' (%s%d) from <deleted>:%s into %s", pr.Issue.Title, issueReference, pr.Issue.Index, pr.HeadBranch, pr.BaseBranch), "", nil
+		return fmt.Sprintf("Merge pull request '%s' (%s%d) from <deleted>:%s into %s", pr.Issue.Title, issueReference, pr.Issue.Index, pr.HeadBranch, pr.BaseBranch), body, nil
 	}
 
-	return fmt.Sprintf("Merge pull request '%s' (%s%d) from %s:%s into %s", pr.Issue.Title, issueReference, pr.Issue.Index, pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseBranch), "", nil
+	return fmt.Sprintf("Merge pull request '%s' (%s%d) from %s:%s into %s", pr.Issue.Title, issueReference, pr.Issue.Index, pr.HeadRepo.FullName(), pr.HeadBranch, pr.BaseBranch), body, nil
 }
 
 func expandDefaultMergeMessage(template string, vars map[string]string) (message, body string) {
diff --git a/templates/repo/issue/view_content/pull.tmpl b/templates/repo/issue/view_content/pull.tmpl
index 77378ef1bd8dd..69e74da3a09f2 100644
--- a/templates/repo/issue/view_content/pull.tmpl
+++ b/templates/repo/issue/view_content/pull.tmpl
@@ -199,7 +199,6 @@
 
 				{{if .AllowMerge}} {{/* user is allowed to merge */}}
 					{{$prUnit := .Repository.MustGetUnit $.Context ctx.Consts.RepoUnitTypePullRequests}}
-					{{$approvers := (.Issue.PullRequest.GetApprovers ctx)}}
 					{{if or $prUnit.PullRequestsConfig.AllowMerge $prUnit.PullRequestsConfig.AllowRebase $prUnit.PullRequestsConfig.AllowRebaseMerge $prUnit.PullRequestsConfig.AllowSquash $prUnit.PullRequestsConfig.AllowFastForwardOnly}}
 						{{$hasPendingPullRequestMergeTip := ""}}
 						{{if .HasPendingPullRequestMerge}}
@@ -208,11 +207,10 @@
 						{{end}}
 						<div class="divider"></div>
 						<script type="module">
-							const issueUrl = window.location.origin + {{$.Issue.Link}};
 							const defaultMergeTitle = {{.DefaultMergeMessage}};
 							const defaultSquashMergeTitle = {{.DefaultSquashMergeMessage}};
-							const defaultMergeMessage = {{if .DefaultMergeBody}}{{.DefaultMergeBody}}{{else}}`Reviewed-on: ${issueUrl}\n` + {{$approvers}}{{end}};
-							const defaultSquashMergeMessage = {{if .DefaultSquashMergeBody}}{{.DefaultSquashMergeBody}}{{else}}`Reviewed-on: ${issueUrl}\n` + {{$approvers}}{{end}};
+							const defaultMergeMessage = {{.DefaultMergeBody}};
+							const defaultSquashMergeMessage = {{.DefaultSquashMergeBody}};
 							const mergeForm = {
 								'baseLink': {{.Link}},
 								'textCancel': {{ctx.Locale.Tr "cancel"}},