diff --git a/kiosk/src/os_update.rs b/kiosk/src/os_update.rs
index bd8f7af..f4c2bde 100644
--- a/kiosk/src/os_update.rs
+++ b/kiosk/src/os_update.rs
@@ -49,6 +49,8 @@ fn compatibility() -> String {
     std::env::var("BF_RAUC_COMPATIBILITY").unwrap_or_else(|_| DEFAULT_COMPATIBILITY.to_string())
 }
 
+pub fn current_os_version_public() -> String { current_os_version() }
+
 fn current_os_version() -> String {
     if let Ok(s) = fs::read_to_string("/etc/betterframe/os-version") {
         let trimmed = s.trim();
diff --git a/kiosk/src/server.rs b/kiosk/src/server.rs
index a90eac0..3e9cbdb 100644
--- a/kiosk/src/server.rs
+++ b/kiosk/src/server.rs
@@ -400,6 +400,7 @@ pub fn heartbeat(
         .header("Authorization", format!("Bearer {key}"))
         .json(&serde_json::json!({
             "kiosk_app_version": kiosk_app_version(),
+            "os_version": crate::os_update::current_os_version_public(),
             "displays": display_info,
             "cpu_temp_c": hw.cpu_temp_c,
             "cpu_load_percent": hw.cpu_load_percent,