diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py b/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py
index faf3859f49..4e6b83681e 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py
@@ -217,7 +217,7 @@ class sfp_event:
         found = 0
 
         try:
-            read, _, _ = select.select([self.rx_fd_p.fd], [], [], timeout)
+            read, _, _ = select.select([self.rx_fd_p.fd], [], [], float(timeout) / 1000)
         except select.error as err:
             rc, msg = err
             if rc == errno.EAGAIN or rc == errno.EINTR: