diff --git a/packages/remark-wiki-link/src/lib/fromMarkdown.ts b/packages/remark-wiki-link/src/lib/fromMarkdown.ts
index 4f9036df..50824c00 100644
--- a/packages/remark-wiki-link/src/lib/fromMarkdown.ts
+++ b/packages/remark-wiki-link/src/lib/fromMarkdown.ts
@@ -79,7 +79,7 @@ function fromMarkdown(opts: FromMarkdownOptions = {}) {
       data: { isEmbed, target, alias },
     } = wikiLink;
     // eslint-disable-next-line no-useless-escape
-    const wikiLinkWithHeadingPattern = /([\p{Letter}\d\s\/\.-_]*)(#.*)?/u;
+    const wikiLinkWithHeadingPattern = /([\p{Letter}\d\s\/\.-_-]*)(#.*)?/u;
     const [, path, heading = ""] = target.match(wikiLinkWithHeadingPattern);
 
     const possibleWikiLinkPermalinks = wikiLinkResolver(path);