diff --git a/server/src/state.rs b/server/src/state.rs
index 7d038fd..6264987 100644
--- a/server/src/state.rs
+++ b/server/src/state.rs
@@ -56,10 +56,19 @@ async fn debug_setup(pool: &SqlitePool) -> Result<(), sqlx::Error> {
 
     db_new_user("user".to_string(), "pass".to_string(), pool).await;
 
-    // This requires that the user with id 1 exists in the user table
-    query!("INSERT INTO posts (user_id, content) VALUES (1, 'Hello world!')",)
+    // Check if the demo post already exists
+    let posted = query!("SELECT * FROM posts WHERE id = 1",)
+        .fetch_one(pool)
+        .await
+        .ok();
+
+    // If the demo user already has a post, don't insert another one
+    if !posted.is_some() {
+        // This requires that the user with id 1 exists in the user table
+        query!("INSERT INTO posts (user_id, content) VALUES (1, 'Hello world! The demo username is user and the password is pass.')",)
         .execute(pool)
         .await?;
+    }
 
     Ok(())
 }