diff --git a/templates/repo/issue/view_content/sidebar.tmpl b/templates/repo/issue/view_content/sidebar.tmpl
index 1c103f09f0..cbea32d303 100644
--- a/templates/repo/issue/view_content/sidebar.tmpl
+++ b/templates/repo/issue/view_content/sidebar.tmpl
@@ -114,7 +114,7 @@
 			</div>
 		</div>
 		{{if and (or .HasIssuesOrPullsWritePermission .IsIssuePoster) (not .HasMerged) (not .Issue.IsClosed)}}
-			<div class="toggle-wip" data-title="{{.Issue.Title}}" data-wip-prefix="{{index .PullRequestWorkInProgressPrefixes 0}}" data-update-url="{{.Issue.Link}}/title">
+			<div class="toggle-wip" data-title="{{.Issue.Title}}" data-wip-prefixes="{{JsonUtils.EncodeToString .PullRequestWorkInProgressPrefixes}}" data-update-url="{{.Issue.Link}}/title">
 				<a class="muted">
 					{{if .IsPullWorkInProgress}}
 						{{ctx.Locale.Tr "repo.pulls.ready_for_review"}} {{ctx.Locale.Tr "repo.pulls.remove_prefix" (index .PullRequestWorkInProgressPrefixes 0)}}
diff --git a/web_src/js/features/repo-issue.js b/web_src/js/features/repo-issue.js
index 2b2eed58bb..3f2b3523f6 100644
--- a/web_src/js/features/repo-issue.js
+++ b/web_src/js/features/repo-issue.js
@@ -583,12 +583,13 @@ export function initRepoIssueWipToggle() {
     e.preventDefault();
     const toggleWip = e.currentTarget.closest('.toggle-wip');
     const title = toggleWip.getAttribute('data-title');
-    const wipPrefix = toggleWip.getAttribute('data-wip-prefix');
+    const wipPrefixes = JSON.parse(toggleWip.getAttribute('data-wip-prefixes'));
     const updateUrl = toggleWip.getAttribute('data-update-url');
+    const prefix = wipPrefixes.find((prefix) => title.startsWith(prefix));
 
     try {
       const params = new URLSearchParams();
-      params.append('title', title?.startsWith(wipPrefix) ? title.slice(wipPrefix.length).trim() : `${wipPrefix.trim()} ${title}`);
+      params.append('title', prefix !== undefined ? title.slice(prefix.length).trim() : `${wipPrefixes[0].trim()} ${title}`);
 
       const response = await POST(updateUrl, {data: params});
       if (!response.ok) {