diff --git a/shutdown_ups.py b/shutdown_ups.py
index b6a3508..42d3d7e 100644
--- a/shutdown_ups.py
+++ b/shutdown_ups.py
@@ -92,7 +92,7 @@ def main():
 
         shutdown_status = run_command('shutdown --show')
         
-        if (state == "on-battery") and (time_on_battery > TIME_THRESHOLD) and ("No scheduled shutdown" in shutdown_status):
+        if (state == "on-battery") and (time_on_battery < TIME_THRESHOLD) and ("No scheduled shutdown" in shutdown_status):
             print("UPS is failing, shutting down in 60 seconds...", flush=True)
             send_email(f"{socket.gethostname()}@vvzvlad.xyz", "UPS is failing, shutting down in 60 seconds...",
                         f"Proxmox node '{socket.gethostname()}': UPS is failing, shutting down in 60 seconds...",