diff --git a/src/api/mod.rs b/src/api/mod.rs
index 5efcd33..83dedb1 100644
--- a/src/api/mod.rs
+++ b/src/api/mod.rs
@@ -298,6 +298,16 @@ impl VikunjaAPI {
         serde_json::from_str(&resp).unwrap()
     }
 
+    pub fn fav_task(&self, task_id: isize, fav: bool) -> Task {
+        let resp = self.post_request(
+            &format!("/tasks/{task_id}"),
+            &serde_json::json!({
+                "is_favorite": fav
+            }),
+        );
+        serde_json::from_str(&resp).unwrap()
+    }
+
     pub fn login(&self, username: &str, password: &str, totp: Option<&str>) -> String {
         let resp = self.post_request(
             "/login",
diff --git a/src/args.rs b/src/args.rs
index 071d7f7..4a2d56b 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -68,6 +68,13 @@ pub fn get_args() -> clap::ArgMatches {
                 .arg(arg!([user] "User").required(true))
                 .arg(arg!([task_id] "Task ID").required(true)),
         )
+        .subcommand(
+            command!()
+                .name("fav")
+                .about("Favorite a task")
+                .arg(arg!(-u --undo "Remove favorite from task").required(false))
+                .arg(arg!([task_id] "Task ID").required(true)),
+        )
         .subcommand(
             command!()
                 .name("label")
diff --git a/src/main.rs b/src/main.rs
index fcbeb14..51b5f46 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -132,6 +132,13 @@ fn main() {
             api.done_task(task_id.parse().unwrap(), done);
             ui::task::print_task_info(task_id.parse().unwrap(), &api);
         }
+        Some(("fav", fav_args)) => {
+            let task_id: &String = fav_args.get_one("task_id").unwrap();
+            let undo = fav_args.get_flag("undo");
+
+            api.fav_task(task_id.parse().unwrap(), !undo);
+            ui::task::print_task_info(task_id.parse().unwrap(), &api);
+        }
         _ => {
             let done = arg.get_flag("done");
             let fav = arg.get_flag("favorite");