diff --git a/debian/sylkserver.service b/debian/sylkserver.service
index 2f2817d..0f021f3 100644
--- a/debian/sylkserver.service
+++ b/debian/sylkserver.service
@@ -1,11 +1,13 @@
 [Unit]
 Description=SylkServer SIP application server
 After=network.target
 
 [Service]
+# Disable i/o buffering on Python
+Environment=PYTHONUNBUFFERED=yes
 Type=simple
 ExecStart=/usr/bin/sylk-server --no-fork
 Restart=on-abnormal
 
 [Install]
 WantedBy=multi-user.target