diff --git a/src/routes/blogs.rs b/src/routes/blogs.rs
index 7359779a..99c63bf3 100644
--- a/src/routes/blogs.rs
+++ b/src/routes/blogs.rs
@@ -379,6 +379,7 @@ pub fn atom_feed(name: String, conn: DbConn) -> Option<Content<String>> {
 
 #[cfg(test)]
 mod tests {
+    use super::valid_slug;
     use crate::init_rocket;
     use diesel::Connection;
     use plume_common::utils::random_hex;
@@ -524,4 +525,10 @@ mod tests {
                 .finish(),
         );
     }
+
+    #[test]
+    fn test_valid_slug() {
+        assert!(valid_slug("Blog Title").is_ok());
+        assert!(valid_slug("ブログ タイトル").is_ok());
+    }
 }