diff --git a/genie-app.service b/genie-app.service
index 990e341..28f22e9 100644
--- a/genie-app.service
+++ b/genie-app.service
@@ -10,6 +10,7 @@ Group=genie
 ExecStart=/opt/emacs-survey/bin/server
 WorkingDirectory=/opt/emacs-survey
 Environment="GENIE_ENV=prod"
+Environment="JULIA_NUM_THREADS=auto"
 
 [Install]
 WantedBy=multi-user.target
diff --git a/setup.org b/setup.org
index b15af5d..e5162de 100644
--- a/setup.org
+++ b/setup.org
@@ -178,6 +178,7 @@ Group=genie
 ExecStart=/opt/emacs-survey/bin/server
 WorkingDirectory=/opt/emacs-survey
 Environment="GENIE_ENV=prod"
+Environment="JULIA_NUM_THREADS=auto"
 
 [Install]
 WantedBy=multi-user.target