diff --git a/src/client.rs b/src/client.rs
index 94c2acd..6d55299 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -41,7 +41,7 @@ impl<'a> Client<'a> {
     async fn list_posts_raw(
         &mut self,
         limit: Option<u16>,
-        tags: Option<Vec<String>>,
+        tags: Option<String>,
         page: Option<u32>,
     ) -> Result<Response> {
         let mut url = url::Url::parse(format!("{}/posts.json", self.host).as_str())?;
@@ -56,8 +56,8 @@ impl<'a> Client<'a> {
         }
 
         if let Some(tags) = tags {
-            if tags.len() > 0 {
-                query_params.push(format!("tags={}", tags.join(",")));
+            if !tags.is_empty() {
+                query_params.push(format!("tags={tags}"));
             }
         }