diff --git a/src/hooks/useMarkdown.hook.ts b/src/hooks/useMarkdown.hook.ts
index 0eca1d4..a7f3402 100644
--- a/src/hooks/useMarkdown.hook.ts
+++ b/src/hooks/useMarkdown.hook.ts
@@ -194,6 +194,7 @@ export const useShikiji = (): Promise<void> => {
         "html",
         "css",
         "json",
+        "rust",
         {
           ...alloyGrammar,
           name: "alloy",
diff --git a/src/utils/fileLanguage.ts b/src/utils/fileLanguage.ts
index 8d803d8..72e5149 100644
--- a/src/utils/fileLanguage.ts
+++ b/src/utils/fileLanguage.ts
@@ -15,6 +15,7 @@ const EXT_TO_LANG: Record<string, string> = {
   scss: "css",
   json: "json",
   jsonc: "json",
+  rs: "rust",
   als: "alloy"
 }