diff --git a/deploy/systemd/ibgateway.service b/deploy/systemd/ibgateway.service
index 4d30344..e43aec8 100644
--- a/deploy/systemd/ibgateway.service
+++ b/deploy/systemd/ibgateway.service
@@ -4,6 +4,9 @@ After=network-online.target
 
 [Service]
 Type=simple
+# Reach IBKR through pc's "ipads" proxy (mihomo, SOCKS5 on 7892). IBC drops -D
+# lines from ibgateway.vmoptions, so the JVM gets them from the environment.
+Environment="JAVA_TOOL_OPTIONS=-DsocksProxyHost=127.0.0.1 -DsocksProxyPort=7892"
 ExecStart=/usr/bin/xvfb-run -a -s "-screen 0 1024x768x24" %h/ibc/gatewaystart.sh -inline
 Restart=always
 RestartSec=60