diff --git a/src/librustdoc/passes/bare_urls.rs b/src/librustdoc/passes/bare_urls.rs
index 3f2e1c68c55ab..524f266bcadd7 100644
--- a/src/librustdoc/passes/bare_urls.rs
+++ b/src/librustdoc/passes/bare_urls.rs
@@ -16,7 +16,7 @@ crate const CHECK_BARE_URLS: Pass = Pass {
     description: "detects URLs that are not hyperlinks",
 };
 
-const URL_REGEX: SyncLazy<Regex> = SyncLazy::new(|| {
+static URL_REGEX: SyncLazy<Regex> = SyncLazy::new(|| {
     Regex::new(concat!(
         r"https?://",                          // url scheme
         r"([-a-zA-Z0-9@:%._\+~#=]{2,256}\.)+", // one or more subdomains